Patent US3798772A successfully refreshed from Google Patents.
US3798772A
Expired / Lapsed
US
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Cut-away model for dental prosthesis
Assignee: Individual
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Filing: 1972-10-16
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Granted: 1974-03-26
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Expires: 1992-10-16
Abstract
Abstract A model for a dental prosthesis is formed as a segment of a casting which is severed from the body of that casting by lateral cuts and by a plate imbedded in the casting. The plate, defining a parting surface between the body of the casting and the segmented model, has a noncircular pedestal which positively orients the model with reference to the body and forms a socket for a dowel serving for the temporary retention of the model on the body.
Inventors
- 👤 Eberhard Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:15
CPC Classifications
A; A61; A61C; A61C9/00; A61C9/002
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
104 words
A dental structure comprising a casting in the shape of at least a partial denture and at least one segment severed from the body of said casting by lateral cuts, said segment being a model of part of the denture; a plate provided with a throughgoing socket and imbedded in said casting between said body and said segment, said plate being anchored to said body and defining a parting surface between the latter and said segment; and a dowel anchored at one end in said segment and having its other end detachably received in said socket for temporarily retaining said segment in said casting.
Claim 2
Dependent Claim
104 words
A dental structure comprising a casting in the shape of at least a partial denture and at least one segment severed from the body of said casting by lateral cuts, said segment being a model of part of the denture; a plate provided with a throughgoing socket and imbedded in said casting between said body and said segment, said plate being anchored to said body and defining a parting surface between the latter and said segment; and a dowel anchored at one end in said segment and having its other end detachably received in said socket for temporarily retaining said segment in said casting.
Claim 3
Dependent Claim
36 words
A dental structure as defined in claim 1 wherein said dowel projects through said socket into said body and tapers from a larger diameter at said one end to a smaller diameter at said other end.
Claim 4
Dependent Claim
40 words
A dental structure as defined in claim 1 wherein said socket is part of a pedestal of noncircular outline integral with said plate and received in a complementary recess of said segment for orienting same with reference to said body.
Claim 5
Dependent Claim
29 words
A dental structure as defined in claim 1 wherein said plate is provided with bosses alongside said socket projecting into said body for holding said plate in position thereon.
Claim 6
Dependent Claim
21 words
A dental structure as defined in claim 1 wherein said plate has beveled edges imbedded in adjoining portions of said body.
Claim 7
Dependent Claim
15 words
A dental structure as defined in claim 1 wherein said plate consists of synthetic resin.
References Cited (Backward Citations)
US3470614A
Cited
US3553839A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |