Patent US4401648A successfully refreshed from Google Patents.
US4401648A
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Dental cream composition
Assignee: Colgate Palmolive Co
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Filing: 1982-03-29
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Granted: 1983-08-30
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Expires: 2002-03-29
Abstract
Abstract Dental cream which readily disperses when agitated in the presence of water or saliva. The gel system of the dentifrice contains xanthan and an alginate in a weight ratio of about 3:1 to 1:3, preferably about 3:1 to 1:1. The dental cream also has desirable texture or "feel" in the mouth and undergoes slow drainage of liquid from foam produced during toothbrushing.
Inventors
- 👤 Stanley E. Piechota, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:40
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/042; A61K8/18; A61K8/72; A61K8/73; A61K8/733; A61Q; A61Q11/00; A61K2800/00; A61K2800/40; A61K2800/59; A61K2800/594
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
69 words
A non-stringy, easily dispersible dental cream overcoming the stringy, difficult to disperse quality imparted by xanthan comprising about 20-80% by weight of a liquid vehicle phase comprising water and humectant and about 0.2-5% by weight of a gel vehicle phase and dispersed therein about 10-75% of a water-insoluble dentally acceptable polishing agent, said gel vehicle containing a weight ratio of about 3:1 to 1:3 of xanthan to alginate salt.
Claim 2
Dependent Claim
69 words
A non-stringy, easily dispersible dental cream overcoming the stringy, difficult to disperse quality imparted by xanthan comprising about 20-80% by weight of a liquid vehicle phase comprising water and humectant and about 0.2-5% by weight of a gel vehicle phase and dispersed therein about 10-75% of a water-insoluble dentally acceptable polishing agent, said gel vehicle containing a weight ratio of about 3:1 to 1:3 of xanthan to alginate salt.
Claim 3
Dependent Claim
21 words
The dental cream claimed in claim 1 wherein said weight ratio is about 3:1 to 1:1 of xanthan to alginate salt.
Claim 4
Dependent Claim
26 words
The dental cream claimed in claim 2 wherein said dental cream contains about 0.75% by weight of xanthan and about 0.25% by weight of alginate salt.
Claim 5
Dependent Claim
21 words
The dental cream claimed in claim 1 wherein said gel vehicle phase is present in amount of about 0.5-2% by weight.
References Cited (Backward Citations)
US3670076A
Cited
US3862307A
Cited
US4064231A
Cited
US4081526A
Cited
US4042680A
Cited
US4108981A
Cited
US4108979A
Cited
US4254101A
Cited
US4314990A
Cited
US4314990B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-29 | 1987-02-28 | 1987-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-29 | 1991-02-28 | 1991-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-29 | 1995-02-28 | 1995-08-30 | $7700.00 | Window Closed / Lapsed |