US4273759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antibacterial oral composition
Assignee: Colgate Palmolive Co
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Filing: 1979-05-18
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Granted: 1981-06-16
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Expires: 1999-05-18
Abstract
Abstract An antibacterial oral composition effective to promote oral hygiene containing an antibacterial antiplaque agent and an additive which reduces staining of dental surfaces without substantially diminishing the antibacterial and antiplaque activity of the agent. Bis-biguanido hexanes, such as chlorhexidine and alexidine, and quaternary ammonium salts, such as benzethonium chloride and cetyl pyridinium chloride are typical examples of antibacterial agents. The antistain additive is a peroxydiphosphate salt, preferably tetrapotassium peroxydiphosphate (K 4 P 2 O 8 ).
Inventors
- 👤 Abdul Gaffar
- 👤 Maria C. Gaffar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:29
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/24; A61K8/30; A61K8/40; A61K8/41; A61K8/416; A61Q; A61Q11/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
84 words
In a method for reducing the amount of dental plaque in the oral cavity comprising applying to the oral cavity an oral composition having a pH of about 4.5 to about 9 and containing an oral vehicle and an effective plaque inhibiting amount of cetylpyridinium chloride or benzethonium chloride antibacterial antiplaque agent whose use has been observed to lead to staining or discoloration of dental surfaces, the improvement comprising including in said composition, as anti-stain additive, an effective stain-inhibiting amount of a peroxydiphosphate salt.
Claim 2
Dependent Claim
84 words
In a method for reducing the amount of dental plaque in the oral cavity comprising applying to the oral cavity an oral composition having a pH of about 4.5 to about 9 and containing an oral vehicle and an effective plaque inhibiting amount of cetylpyridinium chloride or benzethonium chloride antibacterial antiplaque agent whose use has been observed to lead to staining or discoloration of dental surfaces, the improvement comprising including in said composition, as anti-stain additive, an effective stain-inhibiting amount of a peroxydiphosphate salt.
Claim 3
Dependent Claim
12 words
A method according to claim 1 wherein said additive is tetrapotassium peroxydiphosphate.
Claim 4
Independent Claim
15 words
A method according to claims 1 or 2 wherein said antiplaque agent is cetylpyridinium chloride.
Claim 5
Independent Claim
15 words
A method according to claims 1 or 2 wherein said antiplaque agent is benzethonium chloride.
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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) | 1984-06-15 | 1984-12-15 | 1985-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-15 | 1988-12-15 | 1989-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-15 | 1992-12-15 | 1993-06-16 | $7700.00 | Window Closed / Lapsed |