US2901435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spray drying calcium hypochlorite slurry
Assignee: Olin Corp
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Filing: 1955-04-18
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Granted: 1959-08-25
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Expires: 1975-04-18
Abstract
No abstract record available.
Inventors
- 👤 Homer L Robson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:38
CPC Classifications
C; C01; C01B; C01B11/00; C01B11/04; C01B11/06; C01B11/064; B; B01; B01D; B01D1/00; B01D1/16; B01D1/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A METHOD FOR THE PREPARATION OF A CALCIUM HYPOCHLORITE COMPOSITION WHICH COMPRISES PREPARING AN AQUEOUS SLURRY TOTALING ABOUT 40 PERCENT TO 60 PERCENT BY WEIGHT OF CALCIUM HYPOCHLORITE AND SODIUM CHLORIDE GRAINS, THE SODIUM CHLORIDE GRAINS HAVING A MAXIMUM SIZE OF 30 MICRONS, WITH AT LEAST 90 PERCENT BY WEIGHT OF THE SODIUM CHLORIDE GRAINS LESS THAN 25 MICRONS AND AT LEAST 50 PERCENT BY WEIGHT OF THE SODIUM CHLORIDE GRAINS LESS THEN 15 MICRONSQ, AND SPRAY DRYING THE AQUEOUS SLURRY TO PROVIDE PARTICLES NOT EXCEEDING 1,000 MICRONS MAXIMUM SIZE.
Claim 2
Independent Claim
90 words
A METHOD FOR THE PREPARATION OF A CALCIUM HYPOCHLORITE COMPOSITION WHICH COMPRISES PREPARING AN AQUEOUS SLURRY TOTALING ABOUT 40 PERCENT TO 60 PERCENT BY WEIGHT OF CALCIUM HYPOCHLORITE AND SODIUM CHLORIDE GRAINS, THE SODIUM CHLORIDE GRAINS HAVING A MAXIMUM SIZE OF 30 MICRONS, WITH AT LEAST 90 PERCENT BY WEIGHT OF THE SODIUM CHLORIDE GRAINS LESS THAN 25 MICRONS AND AT LEAST 50 PERCENT BY WEIGHT OF THE SODIUM CHLORIDE GRAINS LESS THEN 15 MICRONSQ, AND SPRAY DRYING THE AQUEOUS SLURRY TO PROVIDE PARTICLES NOT EXCEEDING 1,000 MICRONS MAXIMUM SIZE.
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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) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |