Patent NL78715C successfully refreshed from Google Patents.
Patent US4273530A successfully refreshed from Google Patents.
US4273530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orthodontic appliance and clasp therefor
Assignee: Individual
•
Filing: 1979-05-17
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Granted: 1981-06-16
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Expires: 1999-05-17
Abstract
Abstract An orthodontic appliance which includes a plurality of clasps, wherein each clasp has a hook and eye portion for removably mounting the appliance in the mouth of the patient.
Inventors
- 👤 Garfford J. Broussard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:48
CPC Classifications
A; A61; A61C; A61C7/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
99 words
An orthodontic appliance for teeth, comprising: an inner mouth portion; at least one clasp, said clasp bent from a length of orthodontic wire, and said clasp including: a shank portion positioned in at least one interproximal site in the lingual surface of the inner mouth portion; an intermediate portion for occupying an occlusal or incisal interproximal space in the teeth; a downwardly depending hook portion attached to said intermediate portion, and bent so as to occupy a labial or buccal interproximal space of the teeth; and an eye portion attached to said hook portion, adapted for receiving an archwire.
Claim 2
Dependent Claim
99 words
An orthodontic appliance for teeth, comprising: an inner mouth portion; at least one clasp, said clasp bent from a length of orthodontic wire, and said clasp including: a shank portion positioned in at least one interproximal site in the lingual surface of the inner mouth portion; an intermediate portion for occupying an occlusal or incisal interproximal space in the teeth; a downwardly depending hook portion attached to said intermediate portion, and bent so as to occupy a labial or buccal interproximal space of the teeth; and an eye portion attached to said hook portion, adapted for receiving an archwire.
Claim 3
Dependent Claim
29 words
The orthodontic appliance of claim 12 wherein at least two clasps are positioned on the inner mouth portion and the eye portions of the clasps are in horizontal alignment.
Claim 4
Dependent Claim
20 words
The orthodontic appliance of claim 1 wherein the eye portion is formed by a single bend of the orthodontic wire.
Claim 5
Dependent Claim
20 words
The orthodontic appliance of claim 1 wherein the eye portion is formed by a double bend of the orthodontic wire.
Claim 6
Dependent Claim
15 words
The orthodontic appliance of claim 1 wherein the orthodontic wire is of a circular cross-section.
Claim 7
Dependent Claim
15 words
The orthodontic appliance of claim 1 wherein the orthodontic wire is of a triangular cross-section.
References Cited (Backward Citations)
US3967379A
Cited
US3987547A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-15 | 1984-12-15 | 1985-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-15 | 1988-12-15 | 1989-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-15 | 1992-12-15 | 1993-06-16 | $7700.00 | Window Closed / Lapsed |