Patent US4472138A successfully refreshed from Google Patents.
US4472138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orthodontic appliance
Assignee: Individual
•
Filing: 1982-04-28
•
Granted: 1984-09-18
•
Expires: 2002-04-28
Abstract
Abstract An orthodontic appliance for jaw correction comprises positioning structure operatively disposed between the upper and lower arches for correcting the condition. The invention relates to improvements operatively relating the positioning structure to the respective arches.
Inventors
- 👤 Raymond P. Howe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:12
CPC Classifications
A; A61; A61C; A61C7/00; A61C7/36
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
144 words
In an orthodontic jaw correction appliance of the type comprising positioning means operatively disposed between the upper and lower dental arches, said positioning means including a pair of cooperatively engaged elements one of which is associated with one arch and the other of which is associated with the other arch, the improvement for operatively relating said one element to its associated arch comprising a member disposed to overlie and span the buccal surfaces of at least some of the teeth of the associated arch, said member having a T-shaped transverse cross-section comprising a top portion and a leg portion, a plurality of brackets for mounting on at least some of the teeth whose buccal surfaces the member overlies, said brackets having slots, the leg of said T-shaped member being removably inserted in said bracket slots, and said one element being connected with said member.
Claim 2
Dependent Claim
144 words
In an orthodontic jaw correction appliance of the type comprising positioning means operatively disposed between the upper and lower dental arches, said positioning means including a pair of cooperatively engaged elements one of which is associated with one arch and the other of which is associated with the other arch, the improvement for operatively relating said one element to its associated arch comprising a member disposed to overlie and span the buccal surfaces of at least some of the teeth of the associated arch, said member having a T-shaped transverse cross-section comprising a top portion and a leg portion, a plurality of brackets for mounting on at least some of the teeth whose buccal surfaces the member overlies, said brackets having slots, the leg of said T-shaped member being removably inserted in said bracket slots, and said one element being connected with said member.
Claim 3
Dependent Claim
162 words
An arch wire for use in an orthodontic jaw correction appliance of the type comprising positioning means operatively disposed between the upper and lower dental arches, said positioning means including a pair of cooperatively engaged elements one of which is associated with one arch and the other of which is associated with the other arch, and a plurality of brackets for mounting on the buccal surfaces of at least some of the teeth of said one arch, said brackets having slots, said arch wire comprising a member disposed to overlie and span said brackets and provide an operative connection between said brackets and said one of said pair of cooperatively engaged elements, said member having a T-shaped transverse cross section comprising a top portion and a leg portion, the leg of said T-shaped member being removably insertable in said bracket slots, said member having its T-shaped transverse cross section for mesio-distally spanning and operatively engaging with plural teeth via respective brackets thereon.
Claim 4
Dependent Claim
162 words
An arch wire for use in an orthodontic jaw correction appliance of the type comprising positioning means operatively disposed between the upper and lower dental arches, said positioning means including a pair of cooperatively engaged elements one of which is associated with one arch and the other of which is associated with the other arch, and a plurality of brackets for mounting on the buccal surfaces of at least some of the teeth of said one arch, said brackets having slots, said arch wire comprising a member disposed to overlie and span said brackets and provide an operative connection between said brackets and said one of said pair of cooperatively engaged elements, said member having a T-shaped transverse cross section comprising a top portion and a leg portion, the leg of said T-shaped member being removably insertable in said bracket slots, said member having its T-shaped transverse cross section for mesio-distally spanning and operatively engaging with plural teeth via respective brackets thereon.
References Cited (Backward Citations)
US702805A
Cited
US1217374A
Cited
US1481861A
Cited
US1849843A
Cited
FR1079955A
Cited
US2930126A
Cited
US3043007A
Cited
DE1110363B
Cited
US3494034A
Cited
US3618214A
Cited
US3793730A
Cited
US3798773A
Cited
SU594976A1
Cited
US3838515A
Cited
FR2385381A1
Cited
US4242085A
Cited
US4360341A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-09-18 | 1988-03-19 | 1988-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-18 | 1992-03-19 | 1992-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-18 | 1996-03-19 | 1996-09-18 | $7700.00 | Window Closed / Lapsed |