Patent US5425711A successfully refreshed from Google Patents.
US5425711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intravascular catheter with distal guide wire lumen and transition member
Assignee: Boston Scientific Scimed Inc
•
Filing: 1994-02-16
•
Granted: 1995-06-20
•
Expires: 2014-02-16
Abstract
Abstract An over-the-wire balloon dilatation catheter of the short guide wire lumen type has a stainless steel hypotube catheter shaft section, a distal plastic shaft section attached to the hypotube and a balloon connected to the distal plastic shaft section. A relatively short guide wire lumen extends throughout the length of the balloon. The distal shaft section includes a reinforcing and kink-resistant transition member extending throughout the length of the distal shaft section. The transition member allows the proximal guide wire lumen aperture to be placed distally from the distal end of the hypotube. This configuration permits the length of the guide wire lumen to be minimized.
Inventors
- 👤 Thomas V. Ressemann
- 👤 Peter T. Keith
- 👤 Louis G. Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:28
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/104; A61M25/01; A61M25/06; A61M25/0662; A61M25/0021; A61M25/0023; A61M25/0026; A61M2025/0034; A61M25/0043; A61M25/0045; A61M2025/0046; A61M2025/0047; A61M2025/0063; A61M25/0067; A61M25/0074; A61M2025/0079; A61M2025/0098; A61M2025/0183; A61M25/09; A61M2025/09191; A61M2025/1043; A61M2025/1056; A61M2025/1061; A61M2025/1077; A61M2025/1079; A61M2025/1093; A61M25/003; A61M25/0032; A61M25/0054
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
169 words
An intravascular catheter comprising: a main shaft segment defined by a metallic tube, the main shaft segment having a proximal end and a distal end; a balloon; a plastic shaft segment connected between the distal end of the main shaft segment and the balloon, the plastic shaft segment being more flexible than the main shaft segment; the main shaft segment and the plastic shaft segment having an inflation lumen defined therethrough to provide inflation pressure to the balloon; a transition member attached to the main shaft segment and extending distally into the plastic shaft segment, the transition member being less rigid than the main shaft segment; a guide wire lumen extending from a location proximal of the balloon to a location distal of the balloon; and a guide wire lumen inlet spaced distally from the distal end of the main shaft segment and communicating with the guide wire lumen; and the transition member extending into the plastic shaft segment distally at least partially across the guide wire lumen inlet.
Claim 2
Dependent Claim
169 words
An intravascular catheter comprising: a main shaft segment defined by a metallic tube, the main shaft segment having a proximal end and a distal end; a balloon; a plastic shaft segment connected between the distal end of the main shaft segment and the balloon, the plastic shaft segment being more flexible than the main shaft segment; the main shaft segment and the plastic shaft segment having an inflation lumen defined therethrough to provide inflation pressure to the balloon; a transition member attached to the main shaft segment and extending distally into the plastic shaft segment, the transition member being less rigid than the main shaft segment; a guide wire lumen extending from a location proximal of the balloon to a location distal of the balloon; and a guide wire lumen inlet spaced distally from the distal end of the main shaft segment and communicating with the guide wire lumen; and the transition member extending into the plastic shaft segment distally at least partially across the guide wire lumen inlet.
Claim 3
Dependent Claim
15 words
The intravascular catheter of claim 1 wherein the transition member comprises a solid core wire.
Claim 4
Dependent Claim
19 words
The intravascular catheter of claim 2 wherein the guide wire lumen is at least as long as the balloon.
Claim 5
Dependent Claim
27 words
The intravascular catheter of claim 2 wherein the balloon includes a proximal balloon neck and the guide wire lumen inlet is disposed adjacent the proximal balloon neck.
Claim 6
Dependent Claim
26 words
The intravascular catheter of claim 2 wherein the guide wire lumen inlet is disposed at least 5 cm from the distal end of the metallic tube.
Claim 7
Dependent Claim
22 words
The intravascular catheter of claim 5 wherein the length of the guide wire lumen is at least as long as the balloon.
Claim 8
Dependent Claim
25 words
The intravascular catheter of claim 2 wherein the guide wire lumen inlet is disposed about 5 cm from the distal end of the metallic tube.
Claim 9
Dependent Claim
22 words
The intravascular catheter of claim 1 wherein the transition member comprises a solid core wire having multiple sections of differing outside diameters.
Claim 10
Dependent Claim
26 words
The intravascular catheter of claim 8 wherein the diameter of each section of the core wire is smaller than the diameter of a next proximal section.
Claim 11
Dependent Claim
27 words
The intravascular catheter of claim 1 wherein the transition member extends at least between the distal end of the metallic tube and the guide wire lumen inlet.
Claim 12
Dependent Claim
179 words
A catheter comprising: a relatively stiff main shaft section, the relatively stiff main section having a proximal end and a distal end; a balloon; a relatively flexible distal shaft section connected between the distal end of the relatively stiff main shaft section and the balloon; the main and distal shaft sections having an inflation lumen defined therethrough to provide inflation pressure to the balloon; a transition member comprising a core member, the core member having multiple sections of decreasing outer diameter in a distal direction, the transition member attached to and extending distally from the relatively stiff main shaft section into the distal shaft section; and a guide wire lumen extending from a location proximal of the balloon to a location distal of the balloon, the guide wire lumen having an inlet and an outlet, and the inlet of the guide wire lumen being spaced distally from the distal end of the relatively stiff main shaft section; and the transition member extending distally into the relatively flexible distal shaft section at least partially across the guide wire lumen inlet.
Claim 13
Dependent Claim
179 words
A catheter comprising: a relatively stiff main shaft section, the relatively stiff main section having a proximal end and a distal end; a balloon; a relatively flexible distal shaft section connected between the distal end of the relatively stiff main shaft section and the balloon; the main and distal shaft sections having an inflation lumen defined therethrough to provide inflation pressure to the balloon; a transition member comprising a core member, the core member having multiple sections of decreasing outer diameter in a distal direction, the transition member attached to and extending distally from the relatively stiff main shaft section into the distal shaft section; and a guide wire lumen extending from a location proximal of the balloon to a location distal of the balloon, the guide wire lumen having an inlet and an outlet, and the inlet of the guide wire lumen being spaced distally from the distal end of the relatively stiff main shaft section; and the transition member extending distally into the relatively flexible distal shaft section at least partially across the guide wire lumen inlet.
Claim 14
Dependent Claim
13 words
The intravascular catheter of claim 11 wherein the transition member comprises a wire.
Claim 15
Dependent Claim
28 words
The intravascular catheter of claim 11 wherein the transition member extends at least between the distal end of the main shaft section and the guide wire lumen inlet.
Claim 16
Dependent Claim
21 words
The intravascular catheter of claim 13 wherein the guide wire lumen inlet is disposed adjacent a proximal end of the balloon.
Claim 17
Dependent Claim
24 words
The intravascular catheter of claim 11 wherein a length of the guide wire lumen is equal to at least a length of the balloon.
Claim 18
Dependent Claim
19 words
The intravascular catheter of claim 11 wherein a length of the guide wire lumen is 5 centimeters or less.
Claim 19
Dependent Claim
27 words
The intravascular catheter of claim 11 wherein the guide wire lumen inlet is disposed at least 5 cm from the distal end of the main shaft segment.
Claim 20
Dependent Claim
278 words
A balloon dilatation catheter comprising: a metallic tube defining a proximal shaft section, the metallic tube having a proximal end and a distal end; a distal shaft section disposed distally of the proximal shaft section, the distal shaft section being more flexible than the metallic tube; the proximal and distal shaft sections having an inflation lumen defined therethrough which extends to a distal end of the distal shaft section; a dilatation balloon attached to the distal end of the distal shaft section, the dilatation balloon being in fluid communication with the inflation lumen such that inflation pressure may be provided to the balloon therethrough; a guide wire tube extending from a location proximal the balloon to a location distal of the balloon, the guide wire tube defining a second lumen separate from and shorter than the inflation lumen, the second lumen having a guide wire lumen inlet at its proximal end and a guide wire lumen outlet at its distal end, wherein the guide wire tube receives a guide wire therein such that the catheter may be slidably moved on the guide wire, and the guide wire lumen inlet being spaced distally from the distal end of the metallic tube; and a transition member comprising a core wire disposed between the distal end of the metallic tube and the guide wire lumen inlet, the core wire having a plurality of tapers to define a plurality of core wire sections, each core wire section having an outer diameter less than the next proximal core wire section to provide increasing flexibility in the distal direction; and the transition member extends distally at least partially across the guide wire lumen inlet.
Claim 21
Dependent Claim
278 words
A balloon dilatation catheter comprising: a metallic tube defining a proximal shaft section, the metallic tube having a proximal end and a distal end; a distal shaft section disposed distally of the proximal shaft section, the distal shaft section being more flexible than the metallic tube; the proximal and distal shaft sections having an inflation lumen defined therethrough which extends to a distal end of the distal shaft section; a dilatation balloon attached to the distal end of the distal shaft section, the dilatation balloon being in fluid communication with the inflation lumen such that inflation pressure may be provided to the balloon therethrough; a guide wire tube extending from a location proximal the balloon to a location distal of the balloon, the guide wire tube defining a second lumen separate from and shorter than the inflation lumen, the second lumen having a guide wire lumen inlet at its proximal end and a guide wire lumen outlet at its distal end, wherein the guide wire tube receives a guide wire therein such that the catheter may be slidably moved on the guide wire, and the guide wire lumen inlet being spaced distally from the distal end of the metallic tube; and a transition member comprising a core wire disposed between the distal end of the metallic tube and the guide wire lumen inlet, the core wire having a plurality of tapers to define a plurality of core wire sections, each core wire section having an outer diameter less than the next proximal core wire section to provide increasing flexibility in the distal direction; and the transition member extends distally at least partially across the guide wire lumen inlet.
Claim 22
Dependent Claim
163 words
An intravascular catheter comprising: a relatively stiff main shaft section, the relatively stiff main shaft section having a proximal end and a distal end; an intravascular interoperative element; a relatively flexible distal shaft section connected between the distal end of the relatively stiff main shaft section and the intravascular interoperative element; a transition member comprising a core member, the core member having multiple sections of decreasing outer diameter in the distal direction, the transition member attached to and extending distally from the relatively stiff main shaft section into the relatively flexible distal shaft section; and a guide wire lumen extending from a location proximal of the intravascular interoperative element to a location distal of the intravascular interoperative element, the guide wire lumen having an inlet and an outlet, the inlet of the guide wire lumen spaced distally from the distal end of the relatively stiff main shaft section; and the transition member extending distally at least partially across the guide wire lumen inlet.
Claim 23
Dependent Claim
163 words
An intravascular catheter comprising: a relatively stiff main shaft section, the relatively stiff main shaft section having a proximal end and a distal end; an intravascular interoperative element; a relatively flexible distal shaft section connected between the distal end of the relatively stiff main shaft section and the intravascular interoperative element; a transition member comprising a core member, the core member having multiple sections of decreasing outer diameter in the distal direction, the transition member attached to and extending distally from the relatively stiff main shaft section into the relatively flexible distal shaft section; and a guide wire lumen extending from a location proximal of the intravascular interoperative element to a location distal of the intravascular interoperative element, the guide wire lumen having an inlet and an outlet, the inlet of the guide wire lumen spaced distally from the distal end of the relatively stiff main shaft section; and the transition member extending distally at least partially across the guide wire lumen inlet.
Claim 24
Dependent Claim
161 words
An intravascular catheter comprising: a main shaft segment, the main shaft segment having a proximal end and a distal end; a balloon; a trackable plastic shaft segment connected between the distal end of the main shaft segment and the balloon, the plastic shaft segment being more flexible than the main shaft segment; the main shaft segment and the trackable plastic shaft segment having an inflation lumen defined therethrough to provide inflation pressure to the balloon; a transition member attached to the main shaft segment extending distally into the trackable plastic shaft segment, the transition member being less rigid than the main shaft segment; a guide wire lumen extending from a location proximal of the balloon to a location distal of the balloon; and a guide wire lumen inlet spaced distally from the distal end or the main shaft segment and communicating with the guide wire lumen; and the transition member extending distally at least partially across the guide wire lumen inlet.
Claim 25
Dependent Claim
161 words
An intravascular catheter comprising: a main shaft segment, the main shaft segment having a proximal end and a distal end; a balloon; a trackable plastic shaft segment connected between the distal end of the main shaft segment and the balloon, the plastic shaft segment being more flexible than the main shaft segment; the main shaft segment and the trackable plastic shaft segment having an inflation lumen defined therethrough to provide inflation pressure to the balloon; a transition member attached to the main shaft segment extending distally into the trackable plastic shaft segment, the transition member being less rigid than the main shaft segment; a guide wire lumen extending from a location proximal of the balloon to a location distal of the balloon; and a guide wire lumen inlet spaced distally from the distal end or the main shaft segment and communicating with the guide wire lumen; and the transition member extending distally at least partially across the guide wire lumen inlet.
Claim 26
Dependent Claim
164 words
A catheter comprising: a relatively stiff main shaft section, the relatively stiff main section having a proximal end and a distal end; a balloon; a relatively flexible trackable distal shaft section connected between the distal end of the relatively stiff main shaft section and the balloon; the main and trackable distal shaft sections having an inflation lumen defined therethrough to provide inflation pressure to the balloon; a transition member comprising a core member, the core member having multiple sections of decreasing outer diameter in a distal direction, the transition member attached to and extending distally from the relatively stiff main shaft section into the trackable distal shaft section; and a guide wire lumen defined through the balloon, the guide wire lumen having an inlet and an outlet, and the inlet of the guide wire lumen being spaced distally from the distal end of the relatively stiff main shaft section; and the transition member extending distally at least partially across the guide wire lumen inlet.
Claim 27
Dependent Claim
164 words
A catheter comprising: a relatively stiff main shaft section, the relatively stiff main section having a proximal end and a distal end; a balloon; a relatively flexible trackable distal shaft section connected between the distal end of the relatively stiff main shaft section and the balloon; the main and trackable distal shaft sections having an inflation lumen defined therethrough to provide inflation pressure to the balloon; a transition member comprising a core member, the core member having multiple sections of decreasing outer diameter in a distal direction, the transition member attached to and extending distally from the relatively stiff main shaft section into the trackable distal shaft section; and a guide wire lumen defined through the balloon, the guide wire lumen having an inlet and an outlet, and the inlet of the guide wire lumen being spaced distally from the distal end of the relatively stiff main shaft section; and the transition member extending distally at least partially across the guide wire lumen inlet.
Claim 28
Dependent Claim
272 words
A balloon dilatation catheter comprising: a proximal shaft section having a proximal end and a distal end; a trackable distal shaft section disposed distally of the proximal shaft section, the trackable distal shaft section being more flexible than the proximal shaft section; the proximal and trackable distal shaft sections having an inflation lumen defined therethrough which extends to a distal end of the trackable distal shaft section; a dilatation balloon attached to the distal end of the trackable distal shaft section, the dilatation balloon being in fluid communication with the inflation lumen such that inflation pressure may be provided to the balloon therethrough; a guide wire tube extending through an interior of the balloon, the guide wire tube defining a second lumen separate from and shorter than the inflation lumen, the second lumen having a guide wire lumen inlet at its proximal end and a guide wire lumen outlet at its distal end, wherein the guide wire tube receives a guide wire therein such that the catheter may be slidably moved on the guide wire, and the guide wire lumen inlet being spaced distally from the distal end of the proximal shaft section; and a transition member comprising a core wire disposed between the distal end of the proximal shaft section and the guide wire lumen inlet, the core wire having a plurality of tapers to define a plurality of core wire sections, each core wire section having an outer diameter less than the next proximal core wire section to provide increasing flexibility in the distal direction; and the transition member extending distally at least partially across the guide wire lumen inlet.
Claim 29
Dependent Claim
272 words
A balloon dilatation catheter comprising: a proximal shaft section having a proximal end and a distal end; a trackable distal shaft section disposed distally of the proximal shaft section, the trackable distal shaft section being more flexible than the proximal shaft section; the proximal and trackable distal shaft sections having an inflation lumen defined therethrough which extends to a distal end of the trackable distal shaft section; a dilatation balloon attached to the distal end of the trackable distal shaft section, the dilatation balloon being in fluid communication with the inflation lumen such that inflation pressure may be provided to the balloon therethrough; a guide wire tube extending through an interior of the balloon, the guide wire tube defining a second lumen separate from and shorter than the inflation lumen, the second lumen having a guide wire lumen inlet at its proximal end and a guide wire lumen outlet at its distal end, wherein the guide wire tube receives a guide wire therein such that the catheter may be slidably moved on the guide wire, and the guide wire lumen inlet being spaced distally from the distal end of the proximal shaft section; and a transition member comprising a core wire disposed between the distal end of the proximal shaft section and the guide wire lumen inlet, the core wire having a plurality of tapers to define a plurality of core wire sections, each core wire section having an outer diameter less than the next proximal core wire section to provide increasing flexibility in the distal direction; and the transition member extending distally at least partially across the guide wire lumen inlet.
Claim 30
Dependent Claim
164 words
An intravascular catheter comprising: a main shaft segment having a proximal end and a distal end; a balloon; a plastic shaft segment connected between the distal end of the main shaft segment and the balloon, the plastic shaft segment being more flexible than the main shaft segment; the main shaft segment and the plastic shaft segment having an inflation lumen defined therethrough to provide inflation pressure to the balloon; a transition member extending distally from the main shaft segment to the plastic shaft segment, the transition member being less rigid than the main shaft segment for providing a smooth transition of flexibility between the main shaft segment and the plastic shaft segment; a guide wire lumen defined through the plastic shaft segment and the balloon; and a guide wire lumen inlet spaced distally from the distal end of the main shaft segment and communicating with the guide wire lumen; and the transition member extending distally at least partially across the guide wire lumen inlet.
Claim 31
Dependent Claim
164 words
An intravascular catheter comprising: a main shaft segment having a proximal end and a distal end; a balloon; a plastic shaft segment connected between the distal end of the main shaft segment and the balloon, the plastic shaft segment being more flexible than the main shaft segment; the main shaft segment and the plastic shaft segment having an inflation lumen defined therethrough to provide inflation pressure to the balloon; a transition member extending distally from the main shaft segment to the plastic shaft segment, the transition member being less rigid than the main shaft segment for providing a smooth transition of flexibility between the main shaft segment and the plastic shaft segment; a guide wire lumen defined through the plastic shaft segment and the balloon; and a guide wire lumen inlet spaced distally from the distal end of the main shaft segment and communicating with the guide wire lumen; and the transition member extending distally at least partially across the guide wire lumen inlet.
Claim 32
Dependent Claim
148 words
A catheter comprising: a relatively stiff main shaft section, the relatively stiff main shaft section having a proximal end and a distal end; a balloon; a relatively flexible distal shaft section connected between the distal end of the relatively stiff main shaft section and the balloon; the main and distal shaft sections having an inflation lumen defined therethrough to provide inflation pressure to the balloon; a transition member extending distally from the relatively stiff main shaft section into the distal shaft section; the transition member being less stiff than the relatively stiff main shaft section; a guide wire lumen defined through the balloon, the guide wire lumen having an inlet and an outlet, and the inlet of the guide wire lumen being spaced distally from the distal end of the main shaft section; and the transition member extending distally at least partially across the guide wire lumen inlet.
Claim 33
Dependent Claim
148 words
A catheter comprising: a relatively stiff main shaft section, the relatively stiff main shaft section having a proximal end and a distal end; a balloon; a relatively flexible distal shaft section connected between the distal end of the relatively stiff main shaft section and the balloon; the main and distal shaft sections having an inflation lumen defined therethrough to provide inflation pressure to the balloon; a transition member extending distally from the relatively stiff main shaft section into the distal shaft section; the transition member being less stiff than the relatively stiff main shaft section; a guide wire lumen defined through the balloon, the guide wire lumen having an inlet and an outlet, and the inlet of the guide wire lumen being spaced distally from the distal end of the main shaft section; and the transition member extending distally at least partially across the guide wire lumen inlet.
Claim 34
Dependent Claim
250 words
A balloon dilatation catheter comprising: a proximal shaft section having a proximal end and a distal end; a distal shaft section disposed distally of the proximal shaft section, the distal shaft section being more flexible than the proximal shaft section; the proximal and distal shaft sections having an inflation lumen defined therethrough which extends to a distal end of the distal shaft section; a dilatation balloon attached to the distal end of the distal shaft section, the dilatation balloon being in fluid communication with the inflation lumen such that inflation pressure may be provided to the balloon therethrough; a guide wire tube extending through an interior of the balloon, the guide wire tube defining a second lumen separate from and shorter than the inflation lumen, the second lumen having a guide wire lumen inlet at its proximal end and a guide wire lumen outlet at its distal end, wherein the guide wire tube receives a guide wire therein such that the catheter may be slidably moved on the guide wire, and the guide wire lumen inlet being spaced distally from the distal end of the proximal shaft section; a transition member attached to the proximal shaft section and extending distally into the distal shaft section, the transition member being less rigid than the proximal shaft section to provide increasing flexibility in the distal direction; and the second lumen and the transition member extending through the distal shaft section such that the second lumen is along side of the transition member.
Claim 35
Dependent Claim
250 words
A balloon dilatation catheter comprising: a proximal shaft section having a proximal end and a distal end; a distal shaft section disposed distally of the proximal shaft section, the distal shaft section being more flexible than the proximal shaft section; the proximal and distal shaft sections having an inflation lumen defined therethrough which extends to a distal end of the distal shaft section; a dilatation balloon attached to the distal end of the distal shaft section, the dilatation balloon being in fluid communication with the inflation lumen such that inflation pressure may be provided to the balloon therethrough; a guide wire tube extending through an interior of the balloon, the guide wire tube defining a second lumen separate from and shorter than the inflation lumen, the second lumen having a guide wire lumen inlet at its proximal end and a guide wire lumen outlet at its distal end, wherein the guide wire tube receives a guide wire therein such that the catheter may be slidably moved on the guide wire, and the guide wire lumen inlet being spaced distally from the distal end of the proximal shaft section; a transition member attached to the proximal shaft section and extending distally into the distal shaft section, the transition member being less rigid than the proximal shaft section to provide increasing flexibility in the distal direction; and the second lumen and the transition member extending through the distal shaft section such that the second lumen is along side of the transition member.
Claim 36
Dependent Claim
141 words
An intravascular catheter comprising: a relatively stiff main shaft section, the relatively stiff main shaft section having a proximal end and a distal end; an intravascular interoperative element; a relatively flexible distal shaft section connected between the distal end of the relatively stiff main shaft section and the intravascular interoperative element; a transition member attached to and extending distally from the relatively stiff main shaft section into the relatively flexible distal shaft section; the transition member being less rigid than the relatively stiff main shaft section; a guide wire lumen defined through the intravascular interoperative element, the guide wire lumen having an inlet and an outlet, the inlet of the guide wire lumen spaced distally from the distal end of the relatively stiff main shaft section; and the transition member extending distally at least partially across the guide wire lumen inlet.
Claim 37
Dependent Claim
141 words
An intravascular catheter comprising: a relatively stiff main shaft section, the relatively stiff main shaft section having a proximal end and a distal end; an intravascular interoperative element; a relatively flexible distal shaft section connected between the distal end of the relatively stiff main shaft section and the intravascular interoperative element; a transition member attached to and extending distally from the relatively stiff main shaft section into the relatively flexible distal shaft section; the transition member being less rigid than the relatively stiff main shaft section; a guide wire lumen defined through the intravascular interoperative element, the guide wire lumen having an inlet and an outlet, the inlet of the guide wire lumen spaced distally from the distal end of the relatively stiff main shaft section; and the transition member extending distally at least partially across the guide wire lumen inlet.
References Cited (Backward Citations)
US2687131A
Cited
US2936760A
Cited
US2912981A
Cited
US2930377A
Cited
US3225762A
Cited
US3976720A
Cited
SU627828A1
Cited
USRE32348E
Cited
US4085757A
Cited
US4137906A
Cited
US4213461A
Cited
US4261339A
Cited
US4327709A
Cited
US4346698A
Cited
US4261339B1
Cited
US4323071B1
Cited
US4323071A
Cited
US4289128A
Cited
US4311146A
Cited
GB2078114A
Cited
US4413989A
Cited
US4468224A
Cited
US4561439A
Cited
US4662368A
Cited
US4582181A
Cited
US4705507A
Cited
SU1251914A1
Cited
US4597755A
Cited
US4762129B1
Cited
US4762129A
Cited
US4652258A
Cited
WO1986006285A1
Cited
US4917088A
Cited
US4638805A
Cited
US4721117A
Cited
US4798598A
Cited
WO1988000844A1
Cited
US4846174A
Cited
US4790315A
Cited
EP0332649B1
Cited
US5002532A
Cited
US4821722A
Cited
US4771777A
Cited
US4771776A
Cited
US4748982A
Cited
US4771778A
Cited
US4976720A
Cited
EP0282143B1
Cited
US4988356A
Cited
US4811743A
Cited
US4824435A
Cited
US4820349A
Cited
US4881547A
Cited
US5050606A
Cited
US4906241A
Cited
US4994032A
Cited
US4796642A
Cited
US4873983A
Cited
US4921478A
Cited
US4943278A
Cited
US4944745A
Cited
US4838268A
Cited
US4896670A
Cited
US4940062A
Cited
US4998917A
Cited
EP0344530A1
Cited
US4877031A
Cited
US4998923A
Cited
EP0365993A1
Cited
US5057120A
Cited
EP0368523A2
Cited
US5147377A
Cited
US5035705A
Cited
US5035686A
Cited
US4946466A
Cited
US4928693A
Cited
US4947864A
Cited
US4932413A
Cited
US5032113A
Cited
US5047045A
Cited
US4964409A
Cited
US4953553A
Cited
US5042985A
Cited
US5040548A
Cited
US5061273A
Cited
EP0416734A1
Cited
US5034001A
Cited
EP0416662A2
Cited
EP0441384A2
Cited
WO1992000775A1
Cited
EP0479730A1
Cited
US5154725A
Cited
US5135535A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-06-19 | 1998-12-19 | 1999-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-06-19 | 2002-12-19 | 2003-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-06-19 | 2006-12-19 | 2007-06-20 | $7700.00 | Window Closed / Lapsed |