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Patent US3678153A successfully refreshed from Google Patents.
US3678153A
Expired / Lapsed
US
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Difluoroxalatostannate(ii) complexes
Assignee: Indiana University Foundation Inc
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Filing: 1971-01-20
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Granted: 1972-07-18
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Expires: 1991-01-20
Abstract
Abstract A new genus of compositions of matter, namely, difluoroxalatostannate(II) complexes has been discovered. These compounds when incorporated into oral compositions for dental caries prophylaxis (e.g., as a constituent of a dentifrice, prophylaxis paste, or mouthwash), have demonstrated substantial utility as an anticariogenic agent.
Inventors
- 👤 Simon Katz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:56
CPC Classifications
C; C07; C07C; C07C55/00; C07C55/02; C07C55/06; C07C55/07; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/69; A61Q; A61Q11/00; C01; C01G; C01G19/00
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
32 words
Oral compositions, as claimed in claim 1, for dental caries prophylaxis comprising: about 0.1 to 10.0 percent by weight of at least one difluoroxalatostannate of the formula M2(SnF2(C2O4)) where M is sodium.
Claim 2
Dependent Claim
32 words
Oral compositions, as claimed in claim 1, for dental caries prophylaxis comprising: about 0.1 to 10.0 percent by weight of at least one difluoroxalatostannate of the formula M2(SnF2(C2O4)) where M is potassium.
Claim 3
Dependent Claim
32 words
Oral compositions, as claimed in claim 1, for dental caries prophylaxis comprising: about 0.1 to 10.0 percent by weight of at least one difluoroxalatostannate of the formula M2(SnF2(C2O4)) where M is ammonium.
Claim 4
Dependent Claim
31 words
An oral composition, as claimed in claim 1, wherein the composition is a dentifrice and wherein the difluoroxalatostannate is present at a level from about 0.1 to 1.5 percent by weight.
Claim 5
Dependent Claim
24 words
An oral composition, as claimed in claim 5, further comprising about 20 to 60 percent of at least one compatible cleaning and polishing agent.
Claim 6
Dependent Claim
12 words
An oral composition, as claimed in claim 6, where M is sodium.
Claim 7
Dependent Claim
12 words
An oral composition, as claimed in claim 6, where M is potassium.
Claim 8
Dependent Claim
12 words
An oral composition, as claimed in claim 6, where M is ammonium.
Claim 9
Dependent Claim
31 words
An oral composition, as claimed in claim 1, wherein the composition is prophylactic paste and wherein the difluoroxalatostannate is present at a level from about 2 to 10 percent by weight.
Claim 10
Dependent Claim
22 words
An oral composition, as claimed in claim 10, further comprising about 20 to 95 percent of a compatible cleaning and polishing agent.
Claim 11
Dependent Claim
12 words
An oral composition, as claimed in claim 10, where M is sodium.
Claim 12
Dependent Claim
12 words
An oral composition, as claimed in claim 10, where M is potassium.
Claim 13
Dependent Claim
12 words
An oral composition, as claimed in claim 10, where M is ammonium.
Claim 14
Dependent Claim
32 words
An oral composition, as claimed in claim 1, wherein the composition is an aqueous solution adapted for direct topical application to the teeth comprising about 1 to 8 percent by weight difluoroxalatostannate.
Claim 15
Dependent Claim
12 words
An oral composition, as claimed in claim 15, where M is sodium.
Claim 16
Dependent Claim
12 words
An oral composition, as claimed in claim 15, where M is potassium.
Claim 17
Dependent Claim
12 words
An oral composition, as claimed in claim 15, where M is ammonium.
Claim 18
Independent Claim
54 words
A method for increasing the dental caries resistance of teeth comprising the application thereto of an oral composition for caries prophylaxis comprising about 0.1 to 10.0 percent by weight of at least one metal difluoroxalatostannate of the formula M2(SnF2(C2O4)), where M is a member selected from the group consisting of sodium, potassium, and ammonium.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |