US4289754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zinc derivatives and their use in mouthwash compositions
Assignee: TOPOL-DEP Corp A CORP OF
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Filing: 1980-11-03
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Granted: 1981-09-15
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Expires: 2000-11-03
Abstract
Abstract A novel zinc compound, an alkali metal or ammonium zinc citrate, is prepared for use in mouthwash compositions to provide mouthwashes with less astringency without loss of anti-odor properties, improved water solubility of the zinc compound and improved chemical compatibility when ionic fluoride salts are employed in compositions along with the zinc compound.
Inventors
- 👤 Dadi J. Dhabhar
- 👤 Nutan B. Shah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:10
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/27; A61K8/30; A61K8/33; A61K8/36; A61K8/365
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
44 words
A mouthwash composition comprising about 0.01 to about 1.0% by weight of an anticaries effective fluoride compound and about 0.1 to about 15.0% by weight of an ammonium or alkali metal zinc citrate in a mouthwash carrier suitable for use in the oral cavity.
Claim 2
Dependent Claim
44 words
A mouthwash composition comprising about 0.01 to about 1.0% by weight of an anticaries effective fluoride compound and about 0.1 to about 15.0% by weight of an ammonium or alkali metal zinc citrate in a mouthwash carrier suitable for use in the oral cavity.
Claim 3
Dependent Claim
26 words
A mouthwash composition of claim 1 wherein the fluoride compound is selected from the group consisting of sodium fluoride, potassium fluoride, stannous fluoride and sodium monoflurophosphate.
Claim 4
Dependent Claim
13 words
A mouthwash composition of claim 2 wherein the fluoride compound is sodium fluoride.
Claim 5
Dependent Claim
24 words
A mouthwash composition of claim 2 wherein the citrate compound is present in an amount of from about 0.2 to about 5.0% by weight.
Claim 6
Dependent Claim
24 words
A mouthwash composition of claim 3 wherein the citrate compound is present in an amount of from about 0.5 to about 2.0% by weight.
Claim 7
Dependent Claim
16 words
A mouthwash composition of claim 5 wherein the alkali metal zinc citrate is sodium zinc citrate.
Claim 8
Dependent Claim
56 words
A mouthwash composition of claim 5 which is a mouthwash composition comprising about 5 to 40% by weight ethyl alcohol, about 0 to 20% by weight humectant, about 0 to 12% by weight surface active agent, about 0 to 0.5% by weight sweetening agent, about 0 to 0.3% by weight flavoring agent, and the balance water.
Claim 9
Dependent Claim
16 words
A mouthwash composition of claim 7 wherein the alkali metal zinc citrate is sodium zinc citrate.
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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) | 1984-09-14 | 1985-03-16 | 1985-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-14 | 1989-03-16 | 1989-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-14 | 1993-03-16 | 1993-09-15 | $7700.00 | Window Closed / Lapsed |