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US2829110A
Expired / Lapsed
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Bleaching agent
Assignee: Olin Corp
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Filing: 1952-08-30
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Granted: 1958-04-01
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Expires: 1972-08-30
Abstract
No abstract record available.
Inventors
- 👤 Homer L Robson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:02
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/395; C11D3/3953
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A CALCIUM HYPOCHLORITE-SODA ASH COMPOSITION IN WHICH THE SODA ASH IS PRESENT IN AN AMOUNT OF FROM ABOUT 1.5 TO 4 TIMES THE THEORETICAL AMOUNT TO REACT WITH THE CALCIUM HYPOCHLORITE, CONTAINING ABOUT 1% TO ABOUT 50% BY WEIGHT BASED ON THE TOTAL COMPOSITION OF FINELY DIVIDED ANHYDROUS CRYSTALLINE CALCIUM CARBONATE HAVING A SOLUBILITY NOT SUBSTANTIALLY EXCEEDING THAT OF ARAGONITE AND BEING NOT MORE THAN ABOUT 25 MICRONS IN PARTICLE SIZE.
Claim 2
Dependent Claim
71 words
A CALCIUM HYPOCHLORITE-SODA ASH COMPOSITION IN WHICH THE SODA ASH IS PRESENT IN AN AMOUNT OF FROM ABOUT 1.5 TO 4 TIMES THE THEORETICAL AMOUNT TO REACT WITH THE CALCIUM HYPOCHLORITE, CONTAINING ABOUT 1% TO ABOUT 50% BY WEIGHT BASED ON THE TOTAL COMPOSITION OF FINELY DIVIDED ANHYDROUS CRYSTALLINE CALCIUM CARBONATE HAVING A SOLUBILITY NOT SUBSTANTIALLY EXCEEDING THAT OF ARAGONITE AND BEING NOT MORE THAN ABOUT 25 MICRONS IN PARTICLE SIZE.
References Cited (Backward Citations)
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Cited
US2166363A
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US2347402A
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US2538802A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |