US3223588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical brightening dental compound
Assignee: Warner Lambert Co LLC
•
Filing: 1964-04-28
•
Granted: 1965-12-14
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Expires: 1984-04-28
Abstract
No abstract record available.
Inventors
- 👤 Frank D Pickel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:09
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/49; A61K8/4973; A61K8/498; A61Q; A61Q11/00; A61K2800/00; A61K2800/40; A61K2800/42; A61K2800/43; A61K2800/434
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A PASTE-LIKE DENTIFRICE COMPOSITION CONSISTING ESSENTIALLY OF A PASTE DENTIFRICE BASE, A FILM-FORMING SYSTEM COMPRISING A FATTY AMINE HAVING AN AVERAGE CARBON CONTENT OF FROM 10 TO ABOUT 18 CARBON ATOMS AND BEING PRESENT IN AN AMOUNT FROM 0.05% TO 2% BY WEIGHT OF THE DENTIFRICE COMPOSITION, AND AN OPTICAL BRIGHTENER SELECTED FROM THE GROUP CONSISTING OF 4-METHYL-7-HYDROXYCOUMARIN AND 4-METHYL-7-DIETHYLAMINE-COUMARIN, SAID OPTICAL BRIGHTENER BEING PRESENT IN AN AMOUNT FROM ABOUT 0.01% BY WEIGHT TO ABOUT 0.1% BY WEIGHT OF THE DENTIFRICE COMPOSITION.
Claim 2
Dependent Claim
82 words
A PASTE-LIKE DENTIFRICE COMPOSITION CONSISTING ESSENTIALLY OF A PASTE DENTIFRICE BASE, A FILM-FORMING SYSTEM COMPRISING A FATTY AMINE HAVING AN AVERAGE CARBON CONTENT OF FROM 10 TO ABOUT 18 CARBON ATOMS AND BEING PRESENT IN AN AMOUNT FROM 0.05% TO 2% BY WEIGHT OF THE DENTIFRICE COMPOSITION, AND AN OPTICAL BRIGHTENER SELECTED FROM THE GROUP CONSISTING OF 4-METHYL-7-HYDROXYCOUMARIN AND 4-METHYL-7-DIETHYLAMINE-COUMARIN, SAID OPTICAL BRIGHTENER BEING PRESENT IN AN AMOUNT FROM ABOUT 0.01% BY WEIGHT TO ABOUT 0.1% BY WEIGHT OF THE DENTIFRICE COMPOSITION.
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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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |