Patent US4339279A successfully refreshed from Google Patents.
US4339279A
Expired / Lapsed
US
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Retention composition for dental prosthesis
Assignee: Individual
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Filing: 1979-06-11
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Granted: 1982-07-13
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Expires: 1999-06-11
Abstract
Abstract The invention relates to a retention composition for dental prosthesis which, as well as the requisite retention agent, contains a compound inhibiting the growth of bacteria and fungi. The invention aims primarily at eliminating the problems of earlier inhibitors in such compositions which were found to produce toxic and allergic reactions in the mucous membrane tissues. According to the invention, said compound is sodium bicarbonate.
Inventors
- 👤 Sven-Gunnar Hesselgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:39
CPC Classifications
A; A61; A61K; A61K6/00; A61K6/30; A61K6/35; A61K6/90; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31971
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
113 words
A retention composition for dental prosthesis for application between the surfaces of the dental prosthesis and oral mucous membrane of the mouth of a subject such that said retention composition retains said dental prosthesis in position in the mouth, said retention composition consisting essentially of (1) an effective amount of an orally acceptable retention agent to provide sufficient adhesive characteristics to said composition to maintain said dental prosthesis in position in the mouth, said retention agent being selected from the group consisting of an alkali metal salt of carboxy methyl cellulose, acacia, dextrine, starch, and mixtures thereof, and (2) an effective amount of sodium bicarbonate to inhibit the growth of bacteria and fungi.
Claim 2
Dependent Claim
113 words
A retention composition for dental prosthesis for application between the surfaces of the dental prosthesis and oral mucous membrane of the mouth of a subject such that said retention composition retains said dental prosthesis in position in the mouth, said retention composition consisting essentially of (1) an effective amount of an orally acceptable retention agent to provide sufficient adhesive characteristics to said composition to maintain said dental prosthesis in position in the mouth, said retention agent being selected from the group consisting of an alkali metal salt of carboxy methyl cellulose, acacia, dextrine, starch, and mixtures thereof, and (2) an effective amount of sodium bicarbonate to inhibit the growth of bacteria and fungi.
Claim 3
Dependent Claim
20 words
A retention composition according to claim 1 wherein said retention agent is a sodium salt of a carboxy methyl cellulose.
Claim 4
Dependent Claim
26 words
A retention composition according to claim 1 wherein said sodium bicarbonate is present in an amount of from 10 to 90% by weight of the composition.
Claim 5
Dependent Claim
20 words
A retention composition according to claim 1 wherein the retention agent is an alkali metal salt of carboxy methyl cellulose.
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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) | 1985-07-12 | 1986-01-11 | 1986-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-12 | 1990-01-11 | 1990-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-12 | 1994-01-11 | 1994-07-13 | $7700.00 | Window Closed / Lapsed |