Patent US4015110A successfully refreshed from Google Patents.
US4965067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oral compositions
Assignee: Procter and Gamble Co
•
Filing: 1988-08-10
•
Granted: 1990-10-23
•
Expires: 2008-08-10
Abstract
Abstract Oral compositions containing a linear polymer polyelectrolyte, a soluble fluoride ion source and a strontium ion source are described herein.
Inventors
- 👤 John R. Wietfeldt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:36
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/81; A61K8/8135; A61Q; A61Q11/00; A61K8/02; A61K8/0216; A61K8/19; A61K8/20; A61K8/21; A61K8/8105; A61K8/8117; A61K8/8164; A61K8/8188; A61K2800/00; A61K2800/80; A61K2800/92
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
65 words
An oral composition in the form of a toothpaste comprising: (a) a safe and effective amount of a copolymer of vinyl methyl ether and maleic anhydride; (b) a safe and effective amount of a soluble strontium ion source; and (c) a safe and effective amount of a soluble fluoride ion source; wherein said composition is substantially free of linear, noncrosslinked acrylic acid polymers or copolymers.
Claim 2
Dependent Claim
65 words
An oral composition in the form of a toothpaste comprising: (a) a safe and effective amount of a copolymer of vinyl methyl ether and maleic anhydride; (b) a safe and effective amount of a soluble strontium ion source; and (c) a safe and effective amount of a soluble fluoride ion source; wherein said composition is substantially free of linear, noncrosslinked acrylic acid polymers or copolymers.
Claim 3
Dependent Claim
22 words
An oral composition according to claim 1 wherein the polymer is present at a level of from about 0.0003% to about 13%.
Claim 4
Dependent Claim
36 words
An oral composition according to claim 2 wherein the soluble strontium ion source is present at a level of from about 2 to about 10,000 ppm Sr ++ in the composition and/or when it is used.
Claim 5
Dependent Claim
14 words
An oral composition according to claim 3 which also contains a silica dental abrasive.
Claim 6
Dependent Claim
40 words
An oral composition according to claim 4 wherein the soluble fluoride ion source is sodium fluoride present at a level sufficient to give from about 25 to about 5000 ppm F - in the composition and/or when it is used.
Claim 7
Dependent Claim
25 words
A method of applying fluoride to tooth enamel/dentin comprising applying a safe and effective amount of the composition according to claim 1 to the enamel/dentin.
Claim 8
Dependent Claim
14 words
A method according to claim 6 wherein the composition is according to claim 5.
References Cited (Backward Citations)
US2956480A
Cited
US2975102A
Cited
US3429963A
Cited
US3888976A
Cited
US4097935A
Cited
US4146606A
Cited
US4217343A
Cited
US4217342A
Cited
US4183914A
Cited
US4235633A
Cited
US4288355A
Cited
US4304766A
Cited
US4254101A
Cited
US4482535A
Cited
US4407984A
Cited
US4358559A
Cited
US4367219A
Cited
US4430324A
Cited
US4415549A
Cited
US4419346A
Cited
US4591384A
Cited
US4661341A
Cited
US4647600A
Cited
US4716035A
Cited
US4627977A
Cited
US4806340A
Cited
US4806342A
Cited
US4808400A
Cited
US4808401A
Cited
EP0233059A2
Cited
US4871531A
Cited
US4826675A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-10-22 | 1994-04-23 | 1994-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-22 | 1998-04-23 | 1998-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-22 | 2002-04-23 | 2002-10-23 | $7700.00 | Window Closed / Lapsed |