Patent US5500289A successfully refreshed from Google Patents.
US2804466A
Expired / Lapsed
US
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Process of bleaching sulfated and sulfonated anionic synthetic detergent compositions and the resulting products
Assignee: Colgate Palmolive Co
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Filing: 1954-10-14
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Granted: 1957-08-27
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Expires: 1974-10-14
Abstract
No abstract record available.
Inventors
- 👤 Schurman Jack Vair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:04
CPC Classifications
C; C11; C11C; C11C3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A PROCESS OF BLEACHING SULFATED AND SULFONATED ANIONIC SYNTHETIC DETERGENTS WHICH COMPRISES ADDING AN INORGANIC HYPOHALITE TO A SOLUTION OF SUCH A DETERGENT FOLLOWED BY ADDING A PEROXIDE TO SAID SOLUTION.
Claim 2
Dependent Claim
31 words
A PROCESS OF BLEACHING SULFATED AND SULFONATED ANIONIC SYNTHETIC DETERGENTS WHICH COMPRISES ADDING AN INORGANIC HYPOHALITE TO A SOLUTION OF SUCH A DETERGENT FOLLOWED BY ADDING A PEROXIDE TO SAID SOLUTION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-26 | 1961-02-25 | 1961-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-26 | 1965-02-25 | 1965-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-26 | 1969-02-25 | 1969-08-27 | $7700.00 | Window Closed / Lapsed |