Patent US4545979A successfully refreshed from Google Patents.
US4545979A
Expired / Lapsed
US
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Dental hygiene compositions
Assignee: Warner Lambert Co LLC
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Filing: 1984-09-26
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Granted: 1985-10-08
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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 12:56
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/44; A61K8/46; A61K8/463
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
80 words
Dental hygiene composition having antimicrobial activity against plaque-forming microorganisms and comprising an effective amount of 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.
Claim 2
Dependent Claim
80 words
Dental hygiene composition having antimicrobial activity against plaque-forming microorganisms and comprising an effective amount of 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.
Claim 3
Dependent Claim
13 words
Composition as claimed in claim 1 wherein said content is less than 2%.
Claim 4
Dependent Claim
13 words
Composition as claimed in claim 1 wherein said content is less than 1%.
Claim 5
Dependent Claim
17 words
Composition as claimed in claim 1 wherein said vehicle comprises water and said pH is about 4.5.
Claim 6
Dependent Claim
31 words
A composition as claimed in claim 1 comprising 0.5 to 2.0% by weight of said highly pure dodecyl sulphate salt and 0.5 to 2.0% by weight of alkali metal N-acyl sarcosinate.
Claim 7
Dependent Claim
13 words
A composition as claimed in claim 5 wherein said sarcosinate is N-lauroyl sarcosinate.
Claim 8
Dependent Claim
14 words
A composition as claimed in claim 6 wherein said sarcosinate is sodium N-lauroyl sarcosinate.
Claim 9
Dependent Claim
84 words
A toothpaste composition having antimicrobial activity against plaque-forming microorganisms and comprising an effective amount of from 0.5 to 2.0% of one or more highly pure alkali metal salts of dodecyl sulphate substantially free from non-dodecyl alkyl sulphate salts dissolved in one or more vehicles physiologically compatible with teeth and mouth tissues, 0.5 to 2.0% of alkali metal N-acyl sarcosinate, 25 to 40% particulate dental abrasive, 1 to 4% thickener, and 20 to 40% humectant, and the balance comprising water, all percentages being by weight.
Claim 10
Dependent Claim
84 words
A toothpaste composition having antimicrobial activity against plaque-forming microorganisms and comprising an effective amount of from 0.5 to 2.0% of one or more highly pure alkali metal salts of dodecyl sulphate substantially free from non-dodecyl alkyl sulphate salts dissolved in one or more vehicles physiologically compatible with teeth and mouth tissues, 0.5 to 2.0% of alkali metal N-acyl sarcosinate, 25 to 40% particulate dental abrasive, 1 to 4% thickener, and 20 to 40% humectant, and the balance comprising water, all percentages being by weight.
Claim 11
Dependent Claim
14 words
A toothpaste composition as claimed in claim 8, wherein said sarcosinate is N-lauroyl sarcosinate.
Claim 12
Dependent Claim
15 words
A toothpaste composition as claimed in claim 8 wherein said sarcosinate is sodium N-lauroyl sarcosinate.
Claim 13
Dependent Claim
13 words
A toothpaste composition as claimed in claim 8 containing a fluoride anticaries agent.
Claim 14
Dependent Claim
14 words
A toothpaste composition as claimed in claim 11 wherein said fluoride is sodium monofluorophosphate.
Claim 15
Dependent Claim
87 words
A toothpaste composition as claimed in claim 8 comprising 0.5 to 2.0% highly pure sodium dodecyl sulphate, 25 to 40% particulate dental abrasive, 1 to 4% thickener, 0.5 to 3.0% physiologically-acceptable pigment, 0.5 to 2.0% sodium N-lauryl sarcosinate, 20 to 40% humectant, 0.1 to 0.3% sweetener, about 0.5 to 1% fluoride anticaries agent, about 1.0 to 5.0% phosphate buffer, sufficient phosphoric acid to adjust the pH of the composition to about pH 5.0, about 0.5% essential oil flavour, 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) | 1988-10-07 | 1989-04-08 | 1989-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-07 | 1993-04-08 | 1993-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-07 | 1997-04-08 | 1997-10-08 | $7700.00 | Window Closed / Lapsed |