US4179811A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frontal mouth plate for orthodontic prophylaxis and early treatment of dental anomalies
Assignee: Individual
•
Filing: 1975-01-27
•
Granted: 1979-12-25
•
Expires: 1995-01-27
Abstract
Abstract A frontal mouth plate is more sharply curved in its middle than at its ends so as to accommodate normal teeth position and provide prophylactic effects to infants. A holding ring is provided on the plate which is separable for cleaning purposes.
Inventors
- 👤 Rolf Hinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:45
CPC Classifications
A; A61; A61C; A61C7/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
157 words
A frontal mouth plate for the early orthodontic prophylaxis of dental anomalies in infants, said plate being generally elongated with a middle portion separating a pair of end portions in the direction of elongation, said plate being elliptically curved in the direction of elongation, the radius of curvature (R 1 ) of the middle portion of the plate about its axis of curvature being proportioned to the radius of curvature (R 2 ) of the end portions about their axis of curvature as 3:4, said middle and end portions being uniformly merged together, said curved plate having a smooth, uninterrupted, concave inner surface which is parallel to said axes of curvature and abuttable with the exterior of the dental structure when the device is placed inside the lips and cheeks, said curved plate having a convex outer surface with an elongated post affixed to the middle portion thereof and extending outwardly therefrom for mounting a movable holder.
Claim 2
Dependent Claim
157 words
A frontal mouth plate for the early orthodontic prophylaxis of dental anomalies in infants, said plate being generally elongated with a middle portion separating a pair of end portions in the direction of elongation, said plate being elliptically curved in the direction of elongation, the radius of curvature (R 1 ) of the middle portion of the plate about its axis of curvature being proportioned to the radius of curvature (R 2 ) of the end portions about their axis of curvature as 3:4, said middle and end portions being uniformly merged together, said curved plate having a smooth, uninterrupted, concave inner surface which is parallel to said axes of curvature and abuttable with the exterior of the dental structure when the device is placed inside the lips and cheeks, said curved plate having a convex outer surface with an elongated post affixed to the middle portion thereof and extending outwardly therefrom for mounting a movable holder.
Claim 3
Dependent Claim
69 words
The device according to claim 1 characterized in that said post mounts a slit holding ring and carries round projections (15, 16) on two opposite lying surfaces (13, 14) spaced apart a distance equal to a small portion of the circumference of the ring, said projections corresponding to depressions (20, 21) in the faces (18, 19) formed in the holding ring by the removal of the small peripheral portion.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-12-24 | 1983-06-25 | 1983-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-24 | 1987-06-25 | 1987-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-24 | 1991-06-25 | 1991-12-25 | $7700.00 | Window Closed / Lapsed |