Patent US3739476A successfully refreshed from Google Patents.
US3739476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permanent support frame for upper jaw denture and method of mounting the same
Assignee: Individual
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Filing: 1972-06-19
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Granted: 1973-06-19
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Expires: 1992-06-19
Abstract
Abstract The denture support frame comprises a rigid bar, the main portion of which is sized and shaped to correspond to the alveolar ridge of the maxilla. At each end this main portion is turned approximately 90* to extend a short distance upwardly and is again turned approximately 90* so as to extend forwardly to form an implant which is driven anteriorally into the posterior tuberosity of the maxillary ridge. In the front or anterior part of the main portion of the bar a plurality of holes are provided in which the top ends of single implant posts are secured. The exposed portion of the bar is spaced a slight distance below the epithelium and provides a permanent inlay-mounted frame for removably supporting an artificial denture. If there is a remaining natural front tooth to which a bridge can be secured, a portion of the frame may be used as a bridge for one side of the jaw only. When the posterior of the alveolar ridge of the maxilla has deteriorated extensively a rear extension is added to the implant to bear in a groove on the pterygoid bone.
Inventors
- 👤 H Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:10
CPC Classifications
A; A61; A61C; A61C8/00; A61C8/0018; A61C8/0027
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
185 words
An upper jaw denture assembly comprising a rigid, permanent support frame and an artificial denture removably mounted thereon, said support frame consisting of a main bar sized and shaped to correspond to the alveolar ridge of the maxilla, said main bar adapted to extend beneath the alveolar ridge slightly spaced below the bottom surface of the epithelium, a pair of identical integral rear portions extending upwardly from the ends of said main bar respectively substantially at right angles thereto, a pair of tip ends extending forwardly substantially at right angles from the top of said rear portions respectively for a distance of approximately 20 mm., said tip ends adapted to form integral rear implants extending forwardly into the corresponding posterior of the alveolar ridge above the bottom of the bone of the alveolar ridge and at a safe distance below the sinus, an intervening integral portion of said frame connecting the rear of each of said implants with the corresponding end of said main bar, and an anterior implant in the alveolar ridge, the anterior portion of said main bar secured to said anterior implant.
Claim 2
Dependent Claim
185 words
An upper jaw denture assembly comprising a rigid, permanent support frame and an artificial denture removably mounted thereon, said support frame consisting of a main bar sized and shaped to correspond to the alveolar ridge of the maxilla, said main bar adapted to extend beneath the alveolar ridge slightly spaced below the bottom surface of the epithelium, a pair of identical integral rear portions extending upwardly from the ends of said main bar respectively substantially at right angles thereto, a pair of tip ends extending forwardly substantially at right angles from the top of said rear portions respectively for a distance of approximately 20 mm., said tip ends adapted to form integral rear implants extending forwardly into the corresponding posterior of the alveolar ridge above the bottom of the bone of the alveolar ridge and at a safe distance below the sinus, an intervening integral portion of said frame connecting the rear of each of said implants with the corresponding end of said main bar, and an anterior implant in the alveolar ridge, the anterior portion of said main bar secured to said anterior implant.
Claim 3
Dependent Claim
39 words
The upper jaw denture assembly of claim 1 with said rear implants in the posterior portions of said alveolar ridge having flat, chisel-shaped tips to facilitate the tapping of said implants forwardly into said posterior Portions of said ridge.
Claim 4
Dependent Claim
38 words
The upper jaw denture assembly of claim 2 with said rear implants extending slightly outwardly from parallelism with the respective underlying portions of said main bar, and with said rear implants having perforations to facilitate bone growth therethrough.
Claim 5
Dependent Claim
161 words
A permanent support frame for an artificial denture required for the space remaining between an anterior natural tooth and the end of the alveolar ridge of the maxilla on one side of the jaw, said frame consisting of a main bar extending beneath the alveolar ridge and conforming in shape thereto and slightly spaced below the bottom surface of the epithelium, a cap on the natural tooth supporting the forward end of said main bar, an integral rear portion extending upwardly from the rear end of said main bar substantially at right angles thereto, an integral tip end extending forwardly substantially at right angles from the top of said rear portion adapted to form an integral rear implant implant in the posterior of the alveolar ridge above the bottom of the bone of said ridge and at a safe distance below the sinus, and an intervening integral portion of said frame connecting said implant with said rear of said main bar.
Claim 6
Dependent Claim
161 words
A permanent support frame for an artificial denture required for the space remaining between an anterior natural tooth and the end of the alveolar ridge of the maxilla on one side of the jaw, said frame consisting of a main bar extending beneath the alveolar ridge and conforming in shape thereto and slightly spaced below the bottom surface of the epithelium, a cap on the natural tooth supporting the forward end of said main bar, an integral rear portion extending upwardly from the rear end of said main bar substantially at right angles thereto, an integral tip end extending forwardly substantially at right angles from the top of said rear portion adapted to form an integral rear implant implant in the posterior of the alveolar ridge above the bottom of the bone of said ridge and at a safe distance below the sinus, and an intervening integral portion of said frame connecting said implant with said rear of said main bar.
Claim 7
Dependent Claim
33 words
The upper jaw denture assembly of claim 1 with at least one of said rear integral implants having an added rear extension adapted to bear in a groove on the corresponding pterygoid bone.
Claim 8
Dependent Claim
23 words
The denture support frame of claim 4 with said rear implant having an added rear extension adapted to bear on the pterygoid bone.
References Cited (Backward Citations)
US1140538A
Cited
US1140537A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |