US4146606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pharmaceutical compositions for dental use
Assignee: Individual
•
Filing: 1978-05-26
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Granted: 1979-03-27
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Expires: 1998-05-26
Abstract
Abstract A pharmaceutical composition for dental use which comprises a strontium compound, a zinc compound, tannin and, optionally, a fluorine compound in such a weight proportion that strontium, zinc, tannin and fluorine is 1 to 3:2 to 4:1 to 3:0 to 4.
Inventors
- 👤 Reiichi Yamaga
- 👤 Ichiro Yokomizo
- 👤 Setsuo Higashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:04
CPC Classifications
A; A61; A61K; A61K6/00; A61K6/70; A61K6/78; A61K6/60; A61K6/69; A61K6/80; A61K6/884; A61K6/887; A61K6/889; A61P; A61P1/00; A61P1/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
34 words
A pharmaceutical composition for dental use which comprises a strontium compound, a zinc compound and tannin in such a weight proportion that strontium, zinc and tannin is 1 to 3:2 to 4:1 to 3.
Claim 2
Dependent Claim
34 words
A pharmaceutical composition for dental use which comprises a strontium compound, a zinc compound and tannin in such a weight proportion that strontium, zinc and tannin is 1 to 3:2 to 4:1 to 3.
Claim 3
Dependent Claim
12 words
The composition according to claim 1 which further comprises a fluorine compound.
Claim 4
Dependent Claim
26 words
The composition according to claim 2 wherein the weight proportion of strontium, zinc, tannin and fluorine is 1 to 3:2 to 4:1 to 3:0 to 4.
Claim 5
Dependent Claim
13 words
The composition according to claim 1 which is in a solid preparation form.
Claim 6
Dependent Claim
18 words
A method for preventing dental caries which comprises applying the composition according to claim 1 to a tooth.
Claim 7
Dependent Claim
25 words
A method for preventing the progress of dental caries which comprises applying the composition according to claim 1 to a tooth in a decayed state.
References Cited (Backward Citations)
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GB1290627A
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GB1296952A
Cited
GB1373001A
Cited
GB1373003A
Cited
CA959764A
Cited
US3988434A
Cited
US3888976A
Cited
US4022880A
Cited
US4082841A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-03-26 | 1982-09-25 | 1983-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-26 | 1986-09-25 | 1987-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-26 | 1990-09-25 | 1991-03-27 | $7700.00 | Window Closed / Lapsed |