US4550018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental hygiene compositions
Assignee: Warner Lambert Co LLC
•
Filing: 1984-09-26
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Granted: 1985-10-29
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Expires: 2004-09-26
Abstract
Abstract Dental hygiene compositions containing as antiplaque/antiseptic/deodorizing active ingredient highly pure alkali metal lauryl sulphate substantially free from non-lauryl alkyl salts.
Inventors
- 👤 Suhas H. Ambike
- 👤 Narinder S. Grewal
- 👤 Eric Blaser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:01
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/46; A61K8/463; A61K8/40; A61K8/44; A61Q; A61Q11/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
86 words
A liquid mouthwash composition having antimicrobial activity against plaque forming microorganisms and comprising from 0.1 to 2.0 percent by weight of one or more highly pure alkali metal salts of dodecyl sulphate having less than 5% non-dodecyl alkyl sulphate salts, 0.5 to 2.0% by weight of alkali metal N-acyl sarcosinate, and a physiologically-acceptable acidic buffer at pH in the range of 3.0 to 5.0, dissolved in one or more vehicles physiologically compatible with the teeth and mouth tissues, and 10 to 30% by weight ethyl alcohol.
Claim 2
Dependent Claim
86 words
A liquid mouthwash composition having antimicrobial activity against plaque forming microorganisms and comprising from 0.1 to 2.0 percent by weight of one or more highly pure alkali metal salts of dodecyl sulphate having less than 5% non-dodecyl alkyl sulphate salts, 0.5 to 2.0% by weight of alkali metal N-acyl sarcosinate, and a physiologically-acceptable acidic buffer at pH in the range of 3.0 to 5.0, dissolved in one or more vehicles physiologically compatible with the teeth and mouth tissues, and 10 to 30% by weight ethyl alcohol.
Claim 3
Dependent Claim
20 words
A liquid mouthwash composition as claimed in claim 1 containing 0.1 to 0.5% of said highly pure dodecyl sulphate salt.
Claim 4
Dependent Claim
37 words
A liquid mouthwash composition as claimed in claim 1 or 2 containing water or an aqueous vehicle, 0.2 to 3.0% by weight essential oil flavour and 0.1 to 0.2% by weight non-ionic surfactants as dispersing agent therefor.
Claim 5
Dependent Claim
29 words
A liquid mouthwash composition as claimed in claim 1 or 2 having a water content of 50 to 90% by weight and containing 0 to 20% by weight humectant.
Claim 6
Dependent Claim
29 words
A liquid mouthwash composition as claimed in claim 1 or 2 containing 0.01 to 0.05% by weight zinc chloride dissolved in water or an aqueous solution as said vehicle.
Claim 7
Dependent Claim
101 words
A liquid mouthwash composition as claimed in claim 1 comprising 0.1 to 0.5% of highly pure sodium dodecyl sulphate, 10 to 30% ethyl alcohol, 0.01 to 0.05% zinc chloride, 0 to 20% humectant, 0.2 to 3.0% essential oil flavour, 0.1 to 0.2 non-ionic dispersing agent, 0.002 to 0.005% dye, physiologically acceptable acid in an amount sufficient to bring the pH of the composition to pH 3.0 to 5.0, buffer solution for maintaining the pH of the composition at a pH in the range 3.0 to 5.0, 0.01 to 0.05% fluoride, anticaries agent and the balance water, all percentages being by weight.
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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) | 1988-10-28 | 1989-04-29 | 1989-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-28 | 1993-04-29 | 1993-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-28 | 1997-04-29 | 1997-10-29 | $7700.00 | Window Closed / Lapsed |