US3916879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cotton roll holder and lip retractor
Assignee: Individual
•
Filing: 1974-03-12
•
Granted: 1975-11-04
•
Expires: 1994-03-12
Abstract
Abstract A device adjustably fitted on the head of a dental patient includes rigid lip engaging elements hooked into the corners of the lips to retract them. Holder extensions on the lip engaging elements retain cotton rolls internally of the mouth between the cheeks and the upper arch.
Inventors
- 👤 Bennett D Cotten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:42
CPC Classifications
A; A61; A61C; A61C19/00; A61B; A61B1/00; A61B1/24
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
157 words
A device adapted to be worn on the head of a dental patient, comprising a pair of separate, rigid lip engaging retractors adapted to project into the mouth of the patient between the cheeks and the upper arch and having flat connector portions, lip engaging hook portions and internal extensions projecting from the hook portions into the mouth, a pair of absorbent rolls, holder means mounted on said extensions for retaining the rolls in operative positions between the cheeks and the upper arch, elastic band means connected to the connector portions in encircling relation to the head of the patient for operatively positioning the connector portions externally on the cheeks when the lip engaging hook portions engage the corners of the mouth, each of said hook portions having a two-dimensional curvature extending between the flat connector portion and the extension which projects upwardly at an angle to the flat connector portion between the cheek and upper arch.
Claim 2
Independent Claim
157 words
A device adapted to be worn on the head of a dental patient, comprising a pair of separate, rigid lip engaging retractors adapted to project into the mouth of the patient between the cheeks and the upper arch and having flat connector portions, lip engaging hook portions and internal extensions projecting from the hook portions into the mouth, a pair of absorbent rolls, holder means mounted on said extensions for retaining the rolls in operative positions between the cheeks and the upper arch, elastic band means connected to the connector portions in encircling relation to the head of the patient for operatively positioning the connector portions externally on the cheeks when the lip engaging hook portions engage the corners of the mouth, each of said hook portions having a two-dimensional curvature extending between the flat connector portion and the extension which projects upwardly at an angle to the flat connector portion between the cheek and upper arch.
Claim 3
Dependent Claim
34 words
The combination of claim 1 including a pair of facial anchor pads interconnecting the elastic band means with the lip engaging retractors to position said connector portions in substantially tangential relation to the cheeks.
References Cited (Backward Citations)
US744204A
Cited
US2914852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-03 | 1979-05-05 | 1979-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-03 | 1983-05-05 | 1983-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-03 | 1987-05-05 | 1987-11-04 | $7700.00 | Window Closed / Lapsed |