US4181712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tooth paste composition
Assignee: Individual
•
Filing: 1978-08-31
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Granted: 1980-01-01
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Expires: 1998-08-31
Abstract
Abstract A tooth paste composition comprising, in combination with a detergent base, a mixture of micronized colloidal silica gel and activated charcoal.
Inventors
- 👤 Giorgio Rialdi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:29
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/25; A61K8/30; A61K8/33; A61K8/39; A61K8/96; A61K8/97; A61K8/9783; A61K8/9789; A61K2800/00; A61K2800/40; A61K2800/41; A61K2800/412
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
161 words
A tooth paste composition comprising in combination: (a) from 91 to 97% by weight, based on the weight of the tooth paste composition, of a detergent base; and (b) from 3-9% by weight of a mixture of micronized colloidal silica gel and activated charcoal of a grain size of from 0.2 to 0.3 microns; said detergent base comprising from 1 to 3% by weight, based on the weight of the tooth paste composition, of a detergent, from 23 to 28% of an humectant, from 6 to 9% of flavoring agents and aromatic improvers, from 0.5 to 1.5% of a germicidal agent, and from 50 to 55% demineralized water; and said silica and said charcoal being contained in said mixture thereof in a ratio of from about 1 part of carbon to 2 parts of silica to about 1 part of carbon to 20 parts of silica, with said mixture containing from about 40 to about 80% by weight of demineralized water.
Claim 2
Dependent Claim
161 words
A tooth paste composition comprising in combination: (a) from 91 to 97% by weight, based on the weight of the tooth paste composition, of a detergent base; and (b) from 3-9% by weight of a mixture of micronized colloidal silica gel and activated charcoal of a grain size of from 0.2 to 0.3 microns; said detergent base comprising from 1 to 3% by weight, based on the weight of the tooth paste composition, of a detergent, from 23 to 28% of an humectant, from 6 to 9% of flavoring agents and aromatic improvers, from 0.5 to 1.5% of a germicidal agent, and from 50 to 55% demineralized water; and said silica and said charcoal being contained in said mixture thereof in a ratio of from about 1 part of carbon to 2 parts of silica to about 1 part of carbon to 20 parts of silica, with said mixture containing from about 40 to about 80% by weight of demineralized water.
Claim 3
Dependent Claim
42 words
A composition according to claim 1, in which said mixture of colloidal silica and activated charcoal is present in a ratio of 1 part of carbon to 9 parts of silica, with said mixture containing about 60% by weight of demineralized water.
Claim 4
Dependent Claim
28 words
A composition according to claim 1, in which said flavoring agents and aromatic improvers include glycyrrhizin which exerts also a beneficial effect on the stability of the composition.
Claim 5
Dependent Claim
21 words
A composition according to claim 1, in which said germicidal agent comprises a paraoxybenzoic derivative of ethyleneglycolphenylundecylether having the formula: ##STR2##
Claim 6
Dependent Claim
36 words
A composition according to claim 1, in which the ratio of carbon to silica in said mixture is from about 1 part carbon to 8 parts silica to about 1 part carbon to 10 parts silica.
Claim 7
Dependent Claim
19 words
A composition according to claim 5, in which said colloidal mixture contains about 60% by weight of demineralized water.
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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) | 1982-12-31 | 1983-07-02 | 1984-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-31 | 1987-07-02 | 1988-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-31 | 1991-07-02 | 1992-01-01 | $7700.00 | Window Closed / Lapsed |