Patent US4259074A successfully refreshed from Google Patents.
US4259074A
Expired / Lapsed
US
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Method for making dentures
Assignee: LINK JOHN A
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Filing: 1978-10-25
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Granted: 1981-03-31
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Expires: 1998-10-25
Abstract
Abstract The method incorporates the use of an impression tray having replicas of the artificial teeth to be used in the denture. A final impression is formed using the tray and a mold is formed from the tray; artificial teeth that are to be used in the denture are then inserted into the mold and the denture base material is then packed in the mold to form the dentures.
Inventors
- 👤 John A. Link
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:43
CPC Classifications
A; A61; A61C; A61C13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
A method for making dentures with artificial teeth, said method comprising the steps of: (a) forming an impression with impression material supported on an impression tray which tray includes replicas of the artificial teeth that are to become a part of the dentures; (b) inserting the impression tray and supported impression material in investment material; (c) curing the investment material to form a mold; (d) removing the impression tray and impression material from the mold to leave a cavity duplicative of the impression tray and impression defined by the supported impression material; (e) individually inserting artificial teeth corresponding to the replicas of artificial teeth defined by the impression tray in the parts of the mold cavity formed by the replicas of the artificial teeth; (f) packing the remaining part of the mold cavity with denture base material; and (g) curing the denture base material to form the denture with artificial teeth embedded in the denture base material.
Claim 2
Independent Claim
157 words
A method for making dentures with artificial teeth, said method comprising the steps of: (a) forming an impression with impression material supported on an impression tray which tray includes replicas of the artificial teeth that are to become a part of the dentures; (b) inserting the impression tray and supported impression material in investment material; (c) curing the investment material to form a mold; (d) removing the impression tray and impression material from the mold to leave a cavity duplicative of the impression tray and impression defined by the supported impression material; (e) individually inserting artificial teeth corresponding to the replicas of artificial teeth defined by the impression tray in the parts of the mold cavity formed by the replicas of the artificial teeth; (f) packing the remaining part of the mold cavity with denture base material; and (g) curing the denture base material to form the denture with artificial teeth embedded in the denture base material.
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) | 1984-03-30 | 1984-09-29 | 1985-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-30 | 1988-09-29 | 1989-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-30 | 1992-09-29 | 1993-03-31 | $7700.00 | Window Closed / Lapsed |