US4772461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oral compositions
Assignee: Procter and Gamble Co
•
Filing: 1987-06-09
•
Granted: 1988-09-20
•
Expires: 2007-06-09
Abstract
Abstract Disclosed are oral compositions containing particular pyrophosphate salts which provide an anticalculus benefit.
Inventors
- 👤 John J. Parran, Jr.
- 👤 Nabil Y. Sakkab
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:41
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/24
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
88 words
An oral composition in the form of a mouthwash or liquid dentifrice comprising: (a) an amount of a fluoride ion source sufficient to supply from about 50 ppm to about 3500 ppm of fluoride ions; (b) an amount of a pyrophosphate salt selected from the group consisting of dialkali metal and mixtures of dialkali metal and tetraalkali metal pyrophosphate salts sufficient to provide at least 1.5% P 2 O 7 -4 ; and (c) water; wherein the pH of said composition is from about 6.0 to about 10.0.
Claim 2
Dependent Claim
88 words
An oral composition in the form of a mouthwash or liquid dentifrice comprising: (a) an amount of a fluoride ion source sufficient to supply from about 50 ppm to about 3500 ppm of fluoride ions; (b) an amount of a pyrophosphate salt selected from the group consisting of dialkali metal and mixtures of dialkali metal and tetraalkali metal pyrophosphate salts sufficient to provide at least 1.5% P 2 O 7 -4 ; and (c) water; wherein the pH of said composition is from about 6.0 to about 10.0.
Claim 3
Dependent Claim
15 words
An oral composition according to claim 1 which is in the form of a mouthwash.
Claim 4
Dependent Claim
20 words
An oral composition according to claim 2 which in addition contains from about 0 to about 70% of a humectant.
Claim 5
Dependent Claim
21 words
An oral composition according to claim 2 which in addition contains from about 0 to about 10% of a sudsing agent.
Claim 6
Dependent Claim
19 words
An oral composition according to claim 2 which in addition contains from about 0 to about 30% of ethanol.
Claim 7
Dependent Claim
20 words
An oral composition according to claim 2 which in addition contains from about 0.4 to about 2% of flavoring agent.
Claim 8
Dependent Claim
16 words
An oral composition according to claim 1 which is in the form of a liquid dentifrice.
References Cited (Backward Citations)
CA990214A
Cited
GB777556A
Cited
US2876167A
Cited
US3927201A
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US3927202A
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US4323551A
Cited
US4515772A
Cited
US4590066A
Cited
US4684518A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-20 | 1992-03-21 | 1992-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-20 | 1996-03-21 | 1996-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-20 | 2000-03-21 | 2000-09-20 | $7700.00 | Window Closed / Lapsed |