Patent US3671626A successfully refreshed from Google Patents.
US3671626A
Expired / Lapsed
US
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Inhibiting dental plaque
Assignee: Gillette Co LLC
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Filing: 1970-12-14
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Granted: 1972-06-20
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Expires: 1990-12-14
Abstract
Abstract Inhibiting the formation of dental plaque with a composition comprising about 0.05 to 3 percent by weight of pyromellitic acid in a physiologically acceptable vehicle.
Inventors
- 👤 Carl B Felger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:57
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/416; A61K8/33; A61K8/36; A61K8/368; A61Q; A61Q11/00
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
24 words
The dentifrice composition of claim 1 wherein said vehicle includes a solvent for said member and has a pH between about 3 and 9.
Claim 2
Dependent Claim
16 words
The composition of claim 1 including about 0.2 to 0.5 percent by weight of said member.
Claim 3
Dependent Claim
13 words
The composition of claim 1 having a pH between about 5 and 7.
Claim 4
Dependent Claim
15 words
The composition of claim 1 including up to 2 percent by weight of a surfactant.
Claim 5
Dependent Claim
19 words
The composition of claim 1 wherein said member is in the form of a water-soluble salt of pyromellitic acid.
Claim 6
Dependent Claim
54 words
A composition for inhibiting the formation of dental plaque comprising about 0.05 to 3 percent by weight of (1) a member of the group consisting of pyromellitic acid and water-soluble salts thereof and (2) a buffering anion, said member dissolved in a physiologically acceptable liquid vehicle having a pH between about 3 and 9.
Claim 7
Dependent Claim
13 words
The composition of claim 7 wherein said vehicle comprises water and water-soluble alcohol.
Claim 8
Dependent Claim
15 words
The composition of claim 8 wherein said vehicle includes up to about 25 percent ethanol.
Claim 9
Dependent Claim
15 words
The composition of claim 9 wherein said vehicle includes about 15 to 20 percent ethanol.
Claim 10
Dependent Claim
13 words
The composition of claim 7 having a pH between about 5 and 7.
Claim 11
Dependent Claim
27 words
The composition of claim 7 wherein said vehicle includes an effective amount of a germicide selected from the class consisting of phenolic and quaternary ammonium type germicides.
Claim 12
Dependent Claim
14 words
The composition of claim 12 including about 0.02 to 0.5 percent of said germicide.
Claim 13
Dependent Claim
57 words
A composition for inhibiting the formation of dental plaque comprising about 0.05 to 3 percent by weight of (1) a member of the group consisting of pyromellitic acid and water-soluble salts thereof, and (2) an effective amount of a germicide, said member dissolved in a physiologically acceptable liquid vehicle having a pH between about 3 and 9.
Claim 14
Dependent Claim
13 words
The composition of claim 14 wherein said vehicle comprises water and water-soluble alcohol.
Claim 15
Dependent Claim
15 words
The composition of claim 15 wherein said vehicle includes up to about 25 percent ethanol.
Claim 16
Dependent Claim
15 words
The composition of claim 16 wherein said vehicle includes about 15 to 20 percent ethanol.
Claim 17
Dependent Claim
13 words
The composition of claim 14 having a pH between about 5 and 7.
Claim 18
Dependent Claim
47 words
A process for inhibiting the formation of dental plaque in teeth comprising applying to the teeth a composition comprising about 0.05 to 3 percent by weight of (1) a member of the group consisting of pyromellitic acid and water-soluble salts thereof and (2) a physiologically acceptable vehicle.
References Cited (Backward Citations)
US3542917A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |