US3034851A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogen peroxide-ammonium bicarbonate acidic bleaching composition and process
Assignee: EIDP Inc
•
Filing: 1956-10-01
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Granted: 1962-05-15
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Expires: 1976-10-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert B Dustman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:26
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3947
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
42 words
THE METHOD OF BLEACHING A SOLID SURFACE COMPRISING WETTING SAID SURFACE WITH AN AQUEOUS ACIDIC BLEACHING SOLUTION HAVING A PH IN THE RANGE OF FROM ABOUT 6.6 TO 6.9 CONSISTING ESSENTIALLY OF WATER, 10-50% HYDROGEN PEROXIDE AND 10-23% BY WEIGHT AMMONIUM BICARBONATE.
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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) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |