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Patent US3259584A successfully refreshed from Google Patents.
US3259584A
Expired / Lapsed
US
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Bleaching composition
Assignee: Dow Chemical Co
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Filing: 1963-09-23
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Granted: 1966-07-05
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Expires: 1983-09-23
Abstract
No abstract record available.
Inventors
- 👤 John R Moyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:03
CPC Classifications
D; D06; D06L; D06L4/00; D06L4/10; D06L4/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A DRY SOLID STABLE BLEACHING COMPOSITION CONSISTNG ESSENTIALLY OF CITRIC ACID MONOHYDRATE AND CALCIUM PEROXIDE WHEREIN THE RATIO OF THE WEIGHT OF SAID CITRIC ACID MONOHYDRATE TO CALCIUM PEROXIDE IS FROM ABOUT 1.7 TO ABOUT 7 SUCH THAT WHEN MIXED TOGETHER IN WATER, AN AQUEOUS BLEACHING MIXTURE IS PRODUCED HAVING A PH OF WITHIN THE RANGE OF FROM ABOUT 5 TO ABOUT 3.
Claim 2
Dependent Claim
63 words
A DRY SOLID STABLE BLEACHING COMPOSITION CONSISTNG ESSENTIALLY OF CITRIC ACID MONOHYDRATE AND CALCIUM PEROXIDE WHEREIN THE RATIO OF THE WEIGHT OF SAID CITRIC ACID MONOHYDRATE TO CALCIUM PEROXIDE IS FROM ABOUT 1.7 TO ABOUT 7 SUCH THAT WHEN MIXED TOGETHER IN WATER, AN AQUEOUS BLEACHING MIXTURE IS PRODUCED HAVING A PH OF WITHIN THE RANGE OF FROM ABOUT 5 TO ABOUT 3.
References Cited (Backward Citations)
US850606A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |