Patent US3689637A successfully refreshed from Google Patents.
US3689637A
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Dentifrice composition
Assignee: CPPD Inc A CORP OF
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Filing: 1969-07-11
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Granted: 1972-09-05
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Expires: 1989-07-11
Abstract
Abstract This disclosure is concerned with a dentifrice composition which has a high molecular weight polyethylene glycol, a silica xerogel and a silica aerogel and which is opaque, translucent or transparent.
Inventors
- 👤 Morton Pader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:45
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/25; A61Q; A61Q11/00; A61K2800/00; A61K2800/20; A61K2800/26; A61K2800/262
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
11 words
The composition according to claim 1 which has a pyrogenic silica.
Claim 2
Dependent Claim
20 words
The composition according to claim 1 in which the silica xerogel has an average particle diameter of about 10 microns.
Claim 3
Dependent Claim
20 words
The composition according to claim 1 in which the silica aerogel has an average particle diameter of about three microns.
Claim 4
Dependent Claim
22 words
The composition according to claim 1 in which the dentifrice is a transparent toothpaste having a TI of greater than about 0.8.
Claim 5
Dependent Claim
27 words
The composition according to claim 1 in which the dentifrice is a translucent toothpaste having a TI of greater than about 0.5 and up to about 0.8.
Claim 6
Dependent Claim
20 words
The composition according to claim 1 in which the molecular weight of the polyethylene glycol is about 1,000 to 6,000.
Claim 7
Dependent Claim
45 words
The composition according to claim 1 which further contains up to about 15 percent of a dentally acceptable fluorine-containing compound selected from the group consisting of sodium fluoride, lithium fluoride, stannous fluoride, potassium fluoride, ammonium fluoride, sodium fluostannite, stannous chlorofluoride, sodium monofluophosphate and mixtures thereof.
References Cited (Backward Citations)
US3250680A
Cited
US3538230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |