Patent US3756775A successfully refreshed from Google Patents.
US3756775A
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US
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Bleaching process and composition
Assignee: Procter and Gamble Co
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Filing: 1971-06-10
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Granted: 1973-09-04
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Expires: 1991-06-10
Abstract
Abstract A BLEACHING PROCESS IN WHICH THE BLEACHING AGENT IS AN AQUEOUS SOLUTION CONTAINING A BENZOYL GLUTARYL PEROXIDE OF THE FORMULA WHEREIN R IS PHENYL OR SUBSTITUTED PHENYL AND AN INORGANIC PERHYDRATE IS DISCLOSED. BLEACHING COMPOSITIONS CONTAINING SUCH PEROXIDES AND PERHYDRATES WITH DETERGENT SALTS AND/OR ORGANIC SURFACE-ACTIVE AGENTS ARE ALSO DESCRIBED. RCO.OO.CO(CH2)3CO2H
Inventors
- 👤 K Nordfalt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:42
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3945; D; D06; D06L; D06L4/00; D06L4/10; D06L4/15
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |