US4289755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable mouthwash compositions containing zinc and fluoride compounds
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 stable mouthwash composition is provided with acceptable astringency and without loss of anti-odor properties, and improved compatibility with fluoride ions.
Inventors
- 👤 Dadi J. Dhabhar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:54
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/20; A61K8/21; A61K8/27; A61K8/30; A61K8/33; A61K8/36; A61K8/365
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
71 words
A stable mouthwash composition containing zinc and fluoride compounds comprising a mouthwash carrier, from about 0.1 to about 15% by weight zinc citrate, from about 0.01 to about 1% by weight sodium fluoride, an amount of citric acid sufficient to solvate the zinc citrate and an amount of an alkali compound sufficient to adjust the pH of the mouthwash composition to a pH within the range of pH 6.0 to 7.2.
Claim 2
Dependent Claim
71 words
A stable mouthwash composition containing zinc and fluoride compounds comprising a mouthwash carrier, from about 0.1 to about 15% by weight zinc citrate, from about 0.01 to about 1% by weight sodium fluoride, an amount of citric acid sufficient to solvate the zinc citrate and an amount of an alkali compound sufficient to adjust the pH of the mouthwash composition to a pH within the range of pH 6.0 to 7.2.
Claim 3
Dependent Claim
33 words
A stable mouthwash composition of claim 1 wherein the amount of citric acid present is an amount of from about 1.5 to about 10 moles citric acid per 1 mole of zinc citrate.
Claim 4
Dependent Claim
31 words
A stable mouthwash composition of claim 2 wherein the amount of citric acid present is an amount of from about 2.5 to about 3.5 moles per 1 mole of zinc citrate.
Claim 5
Dependent Claim
27 words
A stable mouthwash composition of claim 3 wherein the amount of citric acid present is an amount of about 2.76 moles per 1 mole of zinc citrate.
Claim 6
Dependent Claim
17 words
A mouthwash composition of claim 3 wherein the alkali compound is an alkali metal or ammonium hydroxide.
Claim 7
Dependent Claim
13 words
A mouthwash composition of claim 5 wherein the alkali compound is sodium hydroxide.
Claim 8
Dependent Claim
56 words
A mouthwash composition of claim 6 wherein the mouthwash carrier comprises 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 0.31% by weight flavoring agent, and the balance distilled water.
References Cited (Backward Citations)
US4152418A
Cited
US4154815A
Cited
US3772431A
Cited
US3888976A
Cited
US4100269A
Cited
US4022880A
Cited
US4082841A
Cited
US4138477A
Cited
US4144323A
Cited
US4229430A
Cited
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 |