US4139609A
Expired / Lapsed
US
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Oral compositions containing an anticalculus agent
Assignee: Colgate Palmolive Co
•
Filing: 1976-12-27
•
Granted: 1979-02-13
•
Expires: 1996-12-27
Abstract
Abstract Oral compositions containing an anticalculus agent selected from the group consisting of 2, 3, 4, 5-tetrahydrofuran tetracarboxylic acid and its alkali metal salts.
Inventors
- 👤 Ronald S. Schreiber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:48
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/49; A61K8/4973; A61Q; A61Q11/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
30 words
An oral preparation comprising a humectant vehicle containing a dental-calculus inhibiting amount of an anticalculus agent selected from the group consisting of 2,3,4,5-tetrahydrofuran tetracarboxylic acid and its alkali metal salts.
Claim 2
Dependent Claim
30 words
An oral preparation comprising a humectant vehicle containing a dental-calculus inhibiting amount of an anticalculus agent selected from the group consisting of 2,3,4,5-tetrahydrofuran tetracarboxylic acid and its alkali metal salts.
Claim 3
Dependent Claim
16 words
The oral preparation according to claim 1 in which the anticalculus agent is 2,3,4,5-tetrahydrofuran tetracarboxylic acid.
Claim 4
Dependent Claim
34 words
The oral preparation according to claim 1 in which said vehicle contains a dental polishing material and the anticalculus agent is present in an amount of from about 0.025 to 2.0 percent by weight.
Claim 5
Dependent Claim
31 words
An oral preparation according to claim 1 in which said vehicle is an aqueous-alcoholic vehicle and the anticalculus agent is present in amount of about 0.025 to 1.5 percent by weight.
Claim 6
Dependent Claim
16 words
The oral preparation according to claim 4 in which the anticalculus agent is 2,3,4,5-tetrahydrofuran tetracarboxylic acid.
Claim 7
Independent Claim
42 words
A method for inhibiting the formation of dental calculus which comprises applying to teeth, -a composition containing -a calculus inhibiting amount of a member selected from the group consisting of 2,3,4,5-tetrahydrofuran tetracarboxylic acid and its alkali metal salts -in a humectant vehicle.
Claim 8
Independent Claim
42 words
A method for inhibiting the formation of dental calculus which comprises applying to teeth, -a composition containing -a calculus inhibiting amount of a member selected from the group consisting of 2,3,4,5-tetrahydrofuran tetracarboxylic acid and its alkali metal salts -in a humectant vehicle.
Claim 9
Dependent Claim
29 words
A method in accordance with claim 6, wherein the said vehicle contains 20 to 95% dental polishing agent and the anticalculus agent constitutes about 0.025 to 2.0% by weight.
Claim 10
Dependent Claim
25 words
A method in accordance with claim 6, wherein said vehicle is an aqueous-alcoholic vehicle and the anticalculus agent constitutes about 0.025 to 1.5% 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) | 1982-02-12 | 1982-08-14 | 1983-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-12 | 1986-08-14 | 1987-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-12 | 1990-08-14 | 1991-02-13 | $7700.00 | Window Closed / Lapsed |