Patent US4554640A successfully refreshed from Google Patents.
Patent US4370134A successfully refreshed from Google Patents.
US4370134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
One piece permanent support frame for upper dentures
Assignee: Individual
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Filing: 1980-12-03
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Granted: 1983-01-25
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Expires: 2000-12-03
Abstract
Abstract A frame has a pair of rails extending substantially in parallel relation. These rails are secured together at spaced points by cross webs and posts depend from these cross webs which support tooth-like portions secured together. The rails are arranged to be implanted respectively in grooves cut in the lower edge of the alveolar ridge of the upper jaw bone and in an area inwardly of the mouth of such edge such as in the palatine bone. The rails, posts and tooth-like portions are integrated into a one-piece unit and are all coated with porcelain to provide an attractive assembly as well as to provide structure that forms a physiological seal with mouth tissue.
Inventors
- 👤 Harold D. Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:46
CPC Classifications
A; A61; A61C; A61C8/00; A61C8/0018; A61C8/0027; A61C8/0093; A61C8/0095
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
142 words
A permanent implant denture support frame arranged for association with the upper jaw of a person, comprising (a) a frame portion consisting of first and second bar-like rails extending substantially in parallel relation, (b) said rails being spaced from each other in selected parallel relation so as to allow said first rail to fit in a groove cut along the alveolar ridge and said second rail to fit in another groove cut in the jaw bone inwardly of the mouth relative to the alveolar ridge, (c) cross webs securing said parallel rails together at spaced points throughout the length of said frame portion, (d) and artificial denture means depending integrally from said frame portion, (e) said frame being shaped similar to the contour of the upper jaw of a person so that said rails are arranged to fit in the respective grooves.
Claim 2
Dependent Claim
142 words
A permanent implant denture support frame arranged for association with the upper jaw of a person, comprising (a) a frame portion consisting of first and second bar-like rails extending substantially in parallel relation, (b) said rails being spaced from each other in selected parallel relation so as to allow said first rail to fit in a groove cut along the alveolar ridge and said second rail to fit in another groove cut in the jaw bone inwardly of the mouth relative to the alveolar ridge, (c) cross webs securing said parallel rails together at spaced points throughout the length of said frame portion, (d) and artificial denture means depending integrally from said frame portion, (e) said frame being shaped similar to the contour of the upper jaw of a person so that said rails are arranged to fit in the respective grooves.
Claim 3
Dependent Claim
37 words
The denture support frame of claim 1 wherein said artificial denture means comprise teeth secured to each other in an integrated unit, and post means securing said integrated tooth assembly in depending relation from said frame portion.
Claim 4
Dependent Claim
58 words
The denture support frame of claim 1 wherein said second rail is disposed in an elevated plane relative to said first rail for fitting in the groove cut in the jaw bone inwardly of the mouth above the groove for the first rail, said cross webs angling upwardly therebetween to accommodate the higher positioning of said second rail.
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) | 1986-01-24 | 1986-07-26 | 1987-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-24 | 1990-07-26 | 1991-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-24 | 1994-07-26 | 1995-01-25 | $7700.00 | Window Closed / Lapsed |