US5865844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-stenotic method and product for occluded and partially occluded arteries
Assignee: SYNECTIC VENTURES I LLC
•
Filing: 1995-10-26
•
Granted: 1999-02-02
•
Expires: 2015-10-26
Abstract
Abstract Methods of artificially lining a vessel, especially an artery, of a medical patient to address the existence of a flow-inhibiting atheroma and to significantly alleviate the probability of restenosis, and the resulting products.
Inventors
- 👤 Mark Plaia
- 👤 Vincent A. Reger
- 👤 Gregory N. Nordgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:07
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/320725; A61B17/32075; A61B17/320758; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/95; A61F2/954; A61B17/00008; A61B17/064; A61B17/22; A61B17/22004; A61B17/22012; A61B18/00; A61B18/18; A61B18/20; A61B18/22; A61B18/24; A61B18/245; A61B2017/22001; A61B2017/22002; A61B2017/22051; A61B2017/320741; A61B90/00; A61B90/06; A61B2090/062; A61F2/82; A61F2/848; A61F2/86; A61F2/958; A61F2002/065; A61F2002/075; A61M; A61M25/00; A61M25/01; A61M25/09; A61M2025/09175; A61M2025/09183; A61M25/10; A61M25/104; Y; Y10; Y10S; Y10S623/00; Y10S623/902
Claims Analysis
Total Claims: 83
Claim 1
Independent Claim
66 words
A continuous method of treating an artery, comprising the steps of: separating material comprising plaque from other material within a segment of an artery using no less than a first instrument; placing a vascular graft at a location within the artery comprising the separating site using no less than a second instrument; securing the vascular graft as a lining within said artery at the placing site.
Claim 2
Dependent Claim
66 words
A continuous method of treating an artery, comprising the steps of: separating material comprising plaque from other material within a segment of an artery using no less than a first instrument; placing a vascular graft at a location within the artery comprising the separating site using no less than a second instrument; securing the vascular graft as a lining within said artery at the placing site.
Claim 3
Dependent Claim
19 words
A method according to claim 1 comprising the step of surgically accessing the artery prior to the separating step.
Claim 4
Dependent Claim
19 words
A method according to claim 2 comprising the step of surgically closing an artery access following the securing step.
Claim 5
Dependent Claim
19 words
A method according to claim 1 further comprising the step of performing an arteriotomy to access to the artery.
Claim 6
Dependent Claim
15 words
A method according to claim 4 wherein the accessing step comprises percutaneously using a needle.
Claim 7
Dependent Claim
14 words
A method according to claim 1 wherein the separating step comprises performing an endarterectomy.
Claim 8
Dependent Claim
44 words
A method according to claim 1 wherein the separating step comprises separating atheromatous and arterial material from other arterial wall material along an arterial interface of weakness and pulling the separated atheromatous and arterial material from the artery through a site of surgical access.
Claim 9
Dependent Claim
46 words
A method according to claim 7 wherein the step of separating atheromatous and arterial material comprises first axially parting and thereafter grasping at least one piece of atheromatous and arterial material and pulling thereon causing the piece to be removed along a natural interface of weakness.
Claim 10
Dependent Claim
24 words
A method according to claim 7 wherein the step of separating atheromatous and arterial material comprises bluntly dissecting along the natural interface of weakness.
Claim 11
Dependent Claim
26 words
A method according to claim 1 wherein the placing step comprises displacing the vascular graft through a surgical access site under control of the second instrument.
Claim 12
Dependent Claim
34 words
A method according to claim 1 wherein the placing step comprises inserting a sheath into the artery, advancing the vascular graft through the sheath into the artery and removing the sheath from the artery.
Claim 13
Dependent Claim
24 words
A method according to claim 1 wherein the securing step comprises radially expanding the vascular graft while at the placing site within the artery.
Claim 14
Dependent Claim
16 words
A method according to claim 12 wherein the expanding step comprises mechanically spreading the vascular graft.
Claim 15
Dependent Claim
54 words
A method according to claim 1 wherein the securing step comprises expanding a stent connected to, advanced with, and disposed within the vascular graft at each of the proximal and distal ends of the vascular graft and the separating step comprises axially separating and thereafter grasping and tearing pieces of plaque from the artery.
Claim 16
Dependent Claim
36 words
A method according to claim 1 wherein the securing step comprises expanding a stent connected to, advanced with, and disposed within the vascular graft at each of the proximal and distal ends of the vascular graft.
Claim 17
Dependent Claim
23 words
A method according to claim 1 wherein the separating step is preceded by passing a guide wire through the segment of the artery.
Claim 18
Dependent Claim
34 words
A method according to claim 16 wherein the passing step comprises first advancing no less than a third instrument into the plaque segment to be separated to create a guide wire receiving passageway therein.
Claim 19
Dependent Claim
41 words
A method according to claim 1 wherein the placing step comprises using a balloon catheter as the second instrument to hold the vascular graft and the securing step comprises diametrally expanding the graft by inflating the balloon inside the vascular graft.
Claim 20
Independent Claim
108 words
A method of treating an artery, comprising the steps of: enlarging the flow path size of a plaque-ridden segment of an artery by performing an atherectomy, in whole or in part and/or an endarterectomy, in whole or in part; immediately after the enlarging step, placing a vascular lining in a diametrally small state within the artery by grasping the lining with an insertion instrument to position the graft at least in part co-extensive with a portion of the segment; releasing the graft from the grasp of the insertion instrument; removing the insertion instrument; diametrally expanding the graft; securing the expanded vascular graft within said artery at said location.
Claim 21
Independent Claim
108 words
A method of treating an artery, comprising the steps of: enlarging the flow path size of a plaque-ridden segment of an artery by performing an atherectomy, in whole or in part and/or an endarterectomy, in whole or in part; immediately after the enlarging step, placing a vascular lining in a diametrally small state within the artery by grasping the lining with an insertion instrument to position the graft at least in part co-extensive with a portion of the segment; releasing the graft from the grasp of the insertion instrument; removing the insertion instrument; diametrally expanding the graft; securing the expanded vascular graft within said artery at said location.
Claim 22
Dependent Claim
30 words
A method according to claim 19 wherein the enlarging step comprises expanding the flow path within the artery by performing an angioplasty followed by performance of the atherectomy and/or endarterectomy.
Claim 23
Dependent Claim
21 words
A method according to claim 19 wherein the enlarging step comprises loosening plaque followed by performance of the atherectomy and/or endarterectomy.
Claim 24
Dependent Claim
13 words
A method according to claim 19 wherein the enlarging step comprises cutting plaque.
Claim 25
Dependent Claim
13 words
A method according to claim 19 wherein the enlarging step comprises chipping plaque.
Claim 26
Dependent Claim
13 words
A method according to claim 19 wherein the enlarging step comprises grinding plaque.
Claim 27
Dependent Claim
17 words
A method according to claim 19 wherein the enlarging step comprises applying laser energy to the plaque.
Claim 28
Dependent Claim
30 words
A method according to claim 19 wherein the enlarging step comprises separating and removing both plaque and a portion of the interior of the artery as one or more pieces.
Claim 29
Dependent Claim
34 words
A method according to claim 19 wherein the enlarging step comprises first axially parting the segment from the remaining artery at least in part followed by excising plaque from the artery as elongated units.
Claim 30
Independent Claim
94 words
A method of enlarging the lumen of an artery comprising the steps of: parting first material from second material in an arterial segment using an endarterotome, an atherotome, a Hall loop, a ring dissector, a Scanlon endarsector, an arterial stripper, a laser and/or ultrasonics; placing a vascular graft within the segment of the arterial segment as a lining by tethering the graft to a graft-seizing instrument; untethering the graft from the graft seizing instrument and removing the instrument; thereafter connecting the vascular graft to tissue within the segment using suturing, stapling and/or a stent.
Claim 31
Independent Claim
94 words
A method of enlarging the lumen of an artery comprising the steps of: parting first material from second material in an arterial segment using an endarterotome, an atherotome, a Hall loop, a ring dissector, a Scanlon endarsector, an arterial stripper, a laser and/or ultrasonics; placing a vascular graft within the segment of the arterial segment as a lining by tethering the graft to a graft-seizing instrument; untethering the graft from the graft seizing instrument and removing the instrument; thereafter connecting the vascular graft to tissue within the segment using suturing, stapling and/or a stent.
Claim 32
Independent Claim
86 words
A method of treating a vessel, comprising the steps of: removing plaque and the like from a length of the vessel; inserting a graft through a man-made access route into the vessel under control of a graft-engaging instrument releasibly holding the graft; displacing the graft along the vessel to the plaque removal site under control of the engaging instrument releasibly grasping the graft; releasing the graft from the engaging instrument at the site; causing the graft to be contiguously secured to the vessel at the site.
Claim 33
Independent Claim
86 words
A method of treating a vessel, comprising the steps of: removing plaque and the like from a length of the vessel; inserting a graft through a man-made access route into the vessel under control of a graft-engaging instrument releasibly holding the graft; displacing the graft along the vessel to the plaque removal site under control of the engaging instrument releasibly grasping the graft; releasing the graft from the engaging instrument at the site; causing the graft to be contiguously secured to the vessel at the site.
Claim 34
Dependent Claim
22 words
A method according to claim 29 further comprising holding the graft with another instrument during at least part of the causing step.
Claim 35
Independent Claim
108 words
A method of treating a vessel comprising the steps of: anti-stenotically treating a segment of the vessel so as to reduce the quantity of interior plaque at the segment using only one small arteriotomy site; introducing through the one small arteriotomy site a vascular graft and an instrument coupled to and controlling intravascular displacement of the graft into the vessel; placing the vascular graft and coupled instrument at the treated segment of the vessel; uncoupling the vascular graft from the instrument; removing the instrument from the vessel through said one arteriotomy site; causing adherence between the vascular graft and the interior of the vessel at the treated segment.
Claim 36
Independent Claim
108 words
A method of treating a vessel comprising the steps of: anti-stenotically treating a segment of the vessel so as to reduce the quantity of interior plaque at the segment using only one small arteriotomy site; introducing through the one small arteriotomy site a vascular graft and an instrument coupled to and controlling intravascular displacement of the graft into the vessel; placing the vascular graft and coupled instrument at the treated segment of the vessel; uncoupling the vascular graft from the instrument; removing the instrument from the vessel through said one arteriotomy site; causing adherence between the vascular graft and the interior of the vessel at the treated segment.
Claim 37
Dependent Claim
24 words
A method according to claim 31 further comprising the step of placing a guide wire through the one arteriotomy site and into the vessel.
Claim 38
Dependent Claim
26 words
A method according to claim 32 wherein the placing step is preceded by the step of clearing a path through an occluded portion of the vessel.
Claim 39
Dependent Claim
29 words
A method according to claim 33 wherein the clearing step is practiced using an instrument selected from the group consisting of a dynamic wire guide and a dynamic disrupter.
Claim 40
Dependent Claim
20 words
A method according to claim 31 wherein the anti-stenotic treating step comprises performing an atherectomy, in whole or in part.
Claim 41
Dependent Claim
41 words
A method according to claim 31 wherein the anti-stenotic treating step comprises performing an atherectomy, in whole or in part, using an instrument selected from the group consisting of an atherome cutter, a Simpson atherocath, a rotablator, and a Kinsey device.
Claim 42
Dependent Claim
39 words
A method according to claim 31 wherein the anti-stenotic treating step comprises performing an atherectomy, in whole or in part, using an instrument selected from the group consisting of a laser instrument, an ultrasonics instrument and an extraction catheter.
Claim 43
Dependent Claim
20 words
A method according to claim 31 wherein the anti-stenotic treating step comprises performing an endarterectomy, in whole or in part.
Claim 44
Dependent Claim
20 words
A method according to claim 38 wherein the performing of the endarterectomy step comprises removal of a section of intima.
Claim 45
Dependent Claim
22 words
A method according to claim 38 wherein the performing of the endarterectomy step comprises removal of a section comprising intima and media.
Claim 46
Dependent Claim
40 words
A method according to claim 31 wherein the anti-stenotic treating step comprises performing an endarterectomy, in whole or in part, using an instrument selected from the group consisting of a Hall loop, a Scanlan endarsector, forceps, and an expandable cutter.
Claim 47
Dependent Claim
40 words
A method according to claim 31 wherein the anti-stenotic treating step comprises axially separating pieces of atheromatous and arterial material from other arterial material along an interface of weakness and pulling the pieces from the artery through one arteriotomy site.
Claim 48
Dependent Claim
16 words
A method according to claim 31 further comprising the step of providing a Dacron sleeve graft.
Claim 49
Dependent Claim
17 words
A method according to claim 31 further comprising the step of providing an expanded PTFE sleeve graft.
Claim 50
Dependent Claim
16 words
A method according to claim 31 further comprising the step of providing a natural vein graft.
Claim 51
Dependent Claim
18 words
A method according to claim 31 further comprising the step of providing a graft comprising synthetic ingrowth material.
Claim 52
Dependent Claim
26 words
A method according to claim 31 further comprising the step of providing a sleeve graft comprising synthetic resinous material equipped with at least one position-sustaining stent.
Claim 53
Dependent Claim
23 words
A method according to claim 31 further comprising the step of providing a natural vein graft equipped with at least one position-sustaining stent.
Claim 54
Dependent Claim
31 words
A method according to claim 31 comprising the step of placing a hollow tubular member at the one arteriotomy site and conducting the displacing and removing steps through the tubular member.
Claim 55
Independent Claim
65 words
A method of treating a vessel comprising a vein or artery comprising the steps of: anti-stenotically reducing the quantity of plaque in a predetermined segment of the vessel by axial severing and removal; coupling a vascular graft to an insertion instrument; displacing the graft along the vessel to the segment under control of the insertion instrument; uncoupling the instrument; contiguously securing the graft to segment.
Claim 56
Independent Claim
65 words
A method of treating a vessel comprising a vein or artery comprising the steps of: anti-stenotically reducing the quantity of plaque in a predetermined segment of the vessel by axial severing and removal; coupling a vascular graft to an insertion instrument; displacing the graft along the vessel to the segment under control of the insertion instrument; uncoupling the instrument; contiguously securing the graft to segment.
Claim 57
Independent Claim
70 words
A method of treating a plaque-bearing vessel, comprising the steps of: removing plaque from a predetermined segment of vessel to enlarge the flow path size thereof; placing a vascular lining at a location within the vessel at the segment under control of an instrument by which the lining is controllably and releasibly engaged; securing the vascular lining to the inside of the vessel at said location separate from the instrument.
Claim 58
Independent Claim
70 words
A method of treating a plaque-bearing vessel, comprising the steps of: removing plaque from a predetermined segment of vessel to enlarge the flow path size thereof; placing a vascular lining at a location within the vessel at the segment under control of an instrument by which the lining is controllably and releasibly engaged; securing the vascular lining to the inside of the vessel at said location separate from the instrument.
Claim 59
Independent Claim
62 words
A method of treating a vessel, comprising the steps of: treating the flow path interior of a segment of the vessel by removing plaque therefrom; placing a vascular graft, under control of a graft-gripping device, at a location within the vessel at the segment; securing the vascular graft to the inside of the vessel at said location free from the gripping device.
Claim 60
Independent Claim
62 words
A method of treating a vessel, comprising the steps of: treating the flow path interior of a segment of the vessel by removing plaque therefrom; placing a vascular graft, under control of a graft-gripping device, at a location within the vessel at the segment; securing the vascular graft to the inside of the vessel at said location free from the gripping device.
Claim 61
Independent Claim
71 words
A method of treating a vessel, comprising the steps of: removing plaque from the vessel; grabbing a vascular graft with a clamping device; introducing the vascular graft into the interior of the vessel under control of the clamping device; placing the vascular graft within the vessel at a predetermined internal site; causing adherence between the vascular graft and the interior of the vessel at the site free of the clamping device.
Claim 62
Independent Claim
71 words
A method of treating a vessel, comprising the steps of: removing plaque from the vessel; grabbing a vascular graft with a clamping device; introducing the vascular graft into the interior of the vessel under control of the clamping device; placing the vascular graft within the vessel at a predetermined internal site; causing adherence between the vascular graft and the interior of the vessel at the site free of the clamping device.
Claim 63
Independent Claim
88 words
A method of treating a vessel, comprising the steps of: creating a man-made passageway into an interior of the vessel; removing plaque from the interior of the vessel using the passageway; introducing a graft and a graft-coupling instrument into the vessel through the passageway; displacing the graft and the instrument to a predetermined site within the interior of the vessel comprising the location where plaque was removed; adhering the graft to the interior of the vessel at the site; removing the instrument from the vessel through the passageway.
Claim 64
Independent Claim
88 words
A method of treating a vessel, comprising the steps of: creating a man-made passageway into an interior of the vessel; removing plaque from the interior of the vessel using the passageway; introducing a graft and a graft-coupling instrument into the vessel through the passageway; displacing the graft and the instrument to a predetermined site within the interior of the vessel comprising the location where plaque was removed; adhering the graft to the interior of the vessel at the site; removing the instrument from the vessel through the passageway.
Claim 65
Dependent Claim
19 words
A method according to claim 54 wherein the removing, introducing, and displacing steps are performed using a guide wire.
Claim 66
Dependent Claim
23 words
A method according to claim 54 wherein the introducing step is preceded by the step of temporarily suturing the graft to the instrument.
Claim 67
Dependent Claim
38 words
A method according to claim 54 comprising the step of radially collapsing the graft and coupling the graft to the instrument before the introducing step and the step of radially expanding the collapsed graft during the adhering step.
Claim 68
Independent Claim
126 words
A method of treating a vessel comprising the steps of: anti-stenotically treating a segment of the vessel using a first instrument inserted through one arteriotomy site so as to reduce plaque at the segment; introducing through one arteriotomy site a vascular graft gripped by a second instrument; controlling intravascular displacement of the graft along the vessel to the treated segment by manipulation of the second instrument; eliminating the grip between the vascular graft and the second instrument; removing the second instrument from the vessel and through said one arteriotomy site; deploying the graft into adherence between the vascular graft and the interior of the vessel at the treated segment using a third instrument introduced into and later removed from the vessel through the one arteriotomy site.
Claim 69
Independent Claim
126 words
A method of treating a vessel comprising the steps of: anti-stenotically treating a segment of the vessel using a first instrument inserted through one arteriotomy site so as to reduce plaque at the segment; introducing through one arteriotomy site a vascular graft gripped by a second instrument; controlling intravascular displacement of the graft along the vessel to the treated segment by manipulation of the second instrument; eliminating the grip between the vascular graft and the second instrument; removing the second instrument from the vessel and through said one arteriotomy site; deploying the graft into adherence between the vascular graft and the interior of the vessel at the treated segment using a third instrument introduced into and later removed from the vessel through the one arteriotomy site.
Claim 70
Independent Claim
105 words
A method of treating a vessel comprising the steps of: anti-stenotically treating a segment of the vessel using no more invasiveness than two arteriotomy sites so as to reduce plaque at the segment; introducing through one arteriotomy site a vascular graft carried by a mandrel to which the graft is temporarily attached; controlling intravascular displacement of the graft along the vessel to the treated segment by the manipulation of the mandrel; detaching the vascular graft from the mandrel; removing the mandrel from the vessel through said one arteriotomy site; causing adherence between the vascular graft and the interior of the vessel at the treated segment.
Claim 71
Independent Claim
105 words
A method of treating a vessel comprising the steps of: anti-stenotically treating a segment of the vessel using no more invasiveness than two arteriotomy sites so as to reduce plaque at the segment; introducing through one arteriotomy site a vascular graft carried by a mandrel to which the graft is temporarily attached; controlling intravascular displacement of the graft along the vessel to the treated segment by the manipulation of the mandrel; detaching the vascular graft from the mandrel; removing the mandrel from the vessel through said one arteriotomy site; causing adherence between the vascular graft and the interior of the vessel at the treated segment.
Claim 72
Independent Claim
77 words
A method of treating an artery, comprising the steps of: parting and removing plaque from within a segment of an artery through a surgical access site; placing a vascular graft at a location within and as an internal lining for the artery at least co-extensive with the segment by displacing the vascular graft through the surgical access site by releasibly coupling an insertion device to the graft; securing the vascular graft within said artery at said location.
Claim 73
Independent Claim
77 words
A method of treating an artery, comprising the steps of: parting and removing plaque from within a segment of an artery through a surgical access site; placing a vascular graft at a location within and as an internal lining for the artery at least co-extensive with the segment by displacing the vascular graft through the surgical access site by releasibly coupling an insertion device to the graft; securing the vascular graft within said artery at said location.
Claim 74
Independent Claim
75 words
A method of treating an artery, comprising the steps of: removing plaque from within a segment of an artery through a surgical access site; placing a vascular graft at a location within and as an internal lining for the artery at least co-extensive with the segment by displacing the vascular graft through the surgical access site by releasibly clamping an insertion device to the graft; securing the vascular graft within said artery at said location.
Claim 75
Independent Claim
75 words
A method of treating an artery, comprising the steps of: removing plaque from within a segment of an artery through a surgical access site; placing a vascular graft at a location within and as an internal lining for the artery at least co-extensive with the segment by displacing the vascular graft through the surgical access site by releasibly clamping an insertion device to the graft; securing the vascular graft within said artery at said location.
Claim 76
Independent Claim
74 words
A method of treating an artery, comprising the steps of: reducing the quantity of plaque from within a segment of an artery; placing a vascular graft at a location within and as an internal lining for the artery at least co-extensive with the segment by displacing the vascular graft through a surgical access site using a grasping instrument to releasibly grasp the vascular graft; securing the vascular graft within said artery at said location.
Claim 77
Independent Claim
74 words
A method of treating an artery, comprising the steps of: reducing the quantity of plaque from within a segment of an artery; placing a vascular graft at a location within and as an internal lining for the artery at least co-extensive with the segment by displacing the vascular graft through a surgical access site using a grasping instrument to releasibly grasp the vascular graft; securing the vascular graft within said artery at said location.
Claim 78
Independent Claim
91 words
A method of treating an artery, comprising the steps of: reducing the quantity of plaque from within a segment of an artery; placing a vascular graft at a location within and as an internal lining for the artery at least co-extensive with the segment by suturing a distal end of the vascular graft to a mandrel, advancing the mandrel and the vascular graft collectively into the artery, unsuturing the vascular graft from the mandrel and removing the mandrel from the artery; securing the vascular graft within said artery at said location.
Claim 79
Independent Claim
91 words
A method of treating an artery, comprising the steps of: reducing the quantity of plaque from within a segment of an artery; placing a vascular graft at a location within and as an internal lining for the artery at least co-extensive with the segment by suturing a distal end of the vascular graft to a mandrel, advancing the mandrel and the vascular graft collectively into the artery, unsuturing the vascular graft from the mandrel and removing the mandrel from the artery; securing the vascular graft within said artery at said location.
Claim 80
Independent Claim
77 words
A method of treating an artery, comprising the steps of: eliminating at least some plaque from within a segment of an artery; placing a vascular graft at a location within and as an internal lining for the artery at least partially co-extensive with the segment by displacing the vascular graft through a surgical access site using a forceps to grasp a distal end of the vascular graft; securing the vascular graft within said artery at said location.
Claim 81
Independent Claim
77 words
A method of treating an artery, comprising the steps of: eliminating at least some plaque from within a segment of an artery; placing a vascular graft at a location within and as an internal lining for the artery at least partially co-extensive with the segment by displacing the vascular graft through a surgical access site using a forceps to grasp a distal end of the vascular graft; securing the vascular graft within said artery at said location.
Claim 82
Independent Claim
63 words
A method of treating an artery, comprising the steps of: reducing the quantity of plaque from within a segment of artery; placing a vascular graft at a location within and as an internal lining for the artery at least co-extensive with the segment by displacing the vascular graft through a surgical access site; securing the vascular graft within said artery at said location.
Claim 83
Independent Claim
63 words
A method of treating an artery, comprising the steps of: reducing the quantity of plaque from within a segment of artery; placing a vascular graft at a location within and as an internal lining for the artery at least co-extensive with the segment by displacing the vascular graft through a surgical access site; securing the vascular graft within said artery at said location.
References Cited (Backward Citations)
US207932A
Cited
US1693545A
Cited
US2085368A
Cited
US3635223A
Cited
US3730185A
Cited
US3868956A
Cited
US3788318A
Cited
US4140126A
Cited
US4641653A
Cited
US4281658A
Cited
US4531512A
Cited
US4553545A
Cited
US4655771A
Cited
US4954126B1
Cited
US4954126A
Cited
US4655771B1
Cited
US4512338A
Cited
US4503569A
Cited
US4787899A
Cited
US5397345A
Cited
US5197977A
Cited
US4580568A
Cited
US5019075A
Cited
US4577631A
Cited
US4732152A
Cited
US4745919A
Cited
US4699611A
Cited
US4899729A
Cited
US4923464A
Cited
US4705517A
Cited
US4739762B1
Cited
US4739762A
Cited
US4733665A
Cited
US5102417A
Cited
US4733665C2
Cited
US4776337B1
Cited
US4776337A
Cited
US4733665B1
Cited
US4922905A
Cited
US4681110A
Cited
US4772264A
Cited
US4793348A
Cited
US5104399A
Cited
US4790310A
Cited
US5041126A
Cited
US5037427A
Cited
US5059211A
Cited
US4969458A
Cited
US4792330A
Cited
US5089005A
Cited
US4773665A
Cited
US5201901A
Cited
US5133732A
Cited
US4886062A
Cited
US4877030A
Cited
US4889137A
Cited
US5213580A
Cited
US5019090A
Cited
US4990151A
Cited
US5195984A
Cited
US4994066A
Cited
US4913141A
Cited
US4994069A
Cited
US4886500A
Cited
US4856516A
Cited
US5078726A
Cited
US5163958A
Cited
US5007926A
Cited
US5100429A
Cited
US4990155A
Cited
US4994071A
Cited
US5037392A
Cited
US5116318A
Cited
US5207695A
Cited
US5662701A
Cited
US5282484A
Cited
US5071424A
Cited
US5622188A
Cited
US5034001A
Cited
US5002560A
Cited
US5180368A
Cited
US5226909A
Cited
US5035706A
Cited
US5147385A
Cited
US5089006A
Cited
US5074841A
Cited
US5084010A
Cited
US5071407A
Cited
US5123917A
Cited
US5078720A
Cited
US5199951A
Cited
US5092841A
Cited
US5085635A
Cited
US5211654A
Cited
US5360443A
Cited
US5156619A
Cited
US5192295A
Cited
US5201756A
Cited
US5064435A
Cited
US5196024A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-02-01 | 2002-08-03 | 2003-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-02-01 | 2006-08-03 | 2007-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-02-01 | 2010-08-03 | 2011-02-02 | $7700.00 | Window Closed / Lapsed |