US4116416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental mold
Assignee: Individual
•
Filing: 1976-10-06
•
Granted: 1978-09-26
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Expires: 1996-10-06
Abstract
Abstract A mold for the temporary retention of two or more false dental roots in a mass of plaster of paris or the like has a shell with a curved trough, of an outline conforming to that of all or part of the human jaw, which is of upwardly diverging trapezoidal cross-section and whose side and bottom surfaces are transversely corrugated for precisely locating any one-root segment of the molded mass temporarily removed from the mold. The trough is partly overlain by a retractable slider whose removal facilitates extraction of the mass. The bottom of the mold has a pair of longitudinally tapering, dovetail-shaped rails of a nonadhering material by which it is removably fitted into the plaster-of-paris layer of an articulator.
Inventors
- 👤 Claude Gines Fernand Segura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:18
CPC Classifications
A; A61; A61C; A61C9/00; A61C9/002
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
145 words
A mold for the temporary retention of a plurality of false roots for a multitooth denture, comprising: a shell with a bottom, a central portion and a peripheral wall defining an upwardly open generally U-shaped trough of an outline conforming to a human jaw, said trough having a generally trapezoidal, upwardly diverging cross-section with bottom and side surfaces provided with closely spaced transverse corrugations facilitating the precise repositioning in said trough of a segment of a molded mass temporarily removed therefrom; and a slider of generally T-shaped profile removably seated in said shell, said slider having a shelf partly overhanging said trough for holding said mass in place while giving access to false roots embedded in said mass, said slider being provided with a key forming the web of the T, said key being received in a complementary horizontal keyway formed in said central portion.
Claim 2
Dependent Claim
145 words
A mold for the temporary retention of a plurality of false roots for a multitooth denture, comprising: a shell with a bottom, a central portion and a peripheral wall defining an upwardly open generally U-shaped trough of an outline conforming to a human jaw, said trough having a generally trapezoidal, upwardly diverging cross-section with bottom and side surfaces provided with closely spaced transverse corrugations facilitating the precise repositioning in said trough of a segment of a molded mass temporarily removed therefrom; and a slider of generally T-shaped profile removably seated in said shell, said slider having a shelf partly overhanging said trough for holding said mass in place while giving access to false roots embedded in said mass, said slider being provided with a key forming the web of the T, said key being received in a complementary horizontal keyway formed in said central portion.
Claim 3
Dependent Claim
27 words
A mold as defined in claim 1 wherein said shelf has the shape of a tongue with a tip pointing toward the bight of the U-shaped trough.
Claim 4
Dependent Claim
30 words
A mold as defined in claim 1 wherein said shell has an underside provided with at least one dovetail-shaped rail receivable in a layer of hardenable material on an articulator.
Claim 5
Dependent Claim
15 words
A mold as defined in claim 3 wherein said rail converges toward one end thereof.
Claim 6
Dependent Claim
24 words
A mold as defined in claim 3 wherein said rail consists at least on its surface of a substance nonadhering to plaster of paris.
Claim 7
Dependent Claim
14 words
A mold as defined in claim 5 wherein said substance is polyethylene or polytetrafluoroethylene.
Claim 8
Dependent Claim
30 words
A mold as defined in claim 1 wherein said shell is provided at the bottom of said trough with air holes for aiding in the dislodgement of said molded mass.
Claim 9
Dependent Claim
15 words
A mold as defined in claim 1 wherein said key and said keyway are dovetail-shaped.
Claim 10
Dependent Claim
149 words
A mold for the temporary retention of a plurality of false roots for a multitooth denture, comprising: a shell with a bottom and sidewalls defining an upwardly open trough of an outline conforming to part of a human jaw, said trough having a generally trapezoidal, upwardly diverging cross-section with bottom and side surfaces provided with closely spaced transverse corrugations facilitating the precise repositioning in said trough of a segment of a molded mass temporarily removed therefrom; and a slider of generally L shaped profile removably seated on said shell, said slider being provided with a horizontal leg forming a shelf partly overhanging said trough for holding said mass in place while giving access to false roots embedded in said mass, said slider being further provided with a dovetail-shaped key on a vertical leg thereof received in a complementary horizontal keyway in an outer surface of one of said sidewalls.
Claim 11
Dependent Claim
149 words
A mold for the temporary retention of a plurality of false roots for a multitooth denture, comprising: a shell with a bottom and sidewalls defining an upwardly open trough of an outline conforming to part of a human jaw, said trough having a generally trapezoidal, upwardly diverging cross-section with bottom and side surfaces provided with closely spaced transverse corrugations facilitating the precise repositioning in said trough of a segment of a molded mass temporarily removed therefrom; and a slider of generally L shaped profile removably seated on said shell, said slider being provided with a horizontal leg forming a shelf partly overhanging said trough for holding said mass in place while giving access to false roots embedded in said mass, said slider being further provided with a dovetail-shaped key on a vertical leg thereof received in a complementary horizontal keyway in an outer surface of one of said sidewalls.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-09-25 | 1982-03-27 | 1982-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-25 | 1986-03-27 | 1986-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-25 | 1990-03-27 | 1990-09-26 | $7700.00 | Window Closed / Lapsed |