Patent US2963440A successfully refreshed from Google Patents.
US2963440A
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Production of calcium hypochlorite product and method of manufacture
Assignee: Olin Corp
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Filing: 1956-10-04
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Granted: 1960-12-06
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Expires: 1976-10-04
Abstract
No abstract record available.
Inventors
- 👤 Homer L Robson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:17
CPC Classifications
C; C01; C01B; C01B11/00; C01B11/04; C01B11/06; C01B11/064
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A CALCIUM HYPOCHLORITE COMPOSITION OF AVAILABLE CHLORINE CONTENT OF NOT MORE THAN ABOUT 30% IN THE FORM OF UNIFORMLY SIZED PARTICLES CONSISTING ESENTIALLY OF ABOUT 14 TO 43 PERCENT OF CALCIUM HYPOCHLORITE IN INTIMATE ADMIXTURE WITH ABOUT 86 57 PERCENT OF A DILUENT SALT INERT TO THE HYPOCHLORITE AND SELECTED FROM THE GROUP CONSISTING OF SODIUM CHLORIDE, POTASSIUM CHLORIDE, SODIUM NITRATE AND POTASSIUM NITRATE, NOT MORE THAN ABOUT 5 WEIGHT PERCENT OF SAID PARTICLES CARRYING MORE THAN 25 PERCENT AVAILABLE CHLORINE, SAID COMPOSITION HAVING AN APPARENT DENSITY OF AT LEAST ABOUT 0.7 GRAM PER MILLILITER WHEN SCREENED SO THAT AT LEAST ABOUT 90 PERCENT PASSES A 30 MESH AND IS RETAINED ON A 70 MESH U.S. STANDARD SCREEN
Claim 2
Dependent Claim
118 words
A CALCIUM HYPOCHLORITE COMPOSITION OF AVAILABLE CHLORINE CONTENT OF NOT MORE THAN ABOUT 30% IN THE FORM OF UNIFORMLY SIZED PARTICLES CONSISTING ESENTIALLY OF ABOUT 14 TO 43 PERCENT OF CALCIUM HYPOCHLORITE IN INTIMATE ADMIXTURE WITH ABOUT 86 57 PERCENT OF A DILUENT SALT INERT TO THE HYPOCHLORITE AND SELECTED FROM THE GROUP CONSISTING OF SODIUM CHLORIDE, POTASSIUM CHLORIDE, SODIUM NITRATE AND POTASSIUM NITRATE, NOT MORE THAN ABOUT 5 WEIGHT PERCENT OF SAID PARTICLES CARRYING MORE THAN 25 PERCENT AVAILABLE CHLORINE, SAID COMPOSITION HAVING AN APPARENT DENSITY OF AT LEAST ABOUT 0.7 GRAM PER MILLILITER WHEN SCREENED SO THAT AT LEAST ABOUT 90 PERCENT PASSES A 30 MESH AND IS RETAINED ON A 70 MESH U.S. STANDARD SCREEN
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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) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |