US3645005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calcium hypochlorite manufacture
Assignee: Coastal Industries Inc
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Filing: 1970-04-14
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Granted: 1972-02-29
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Expires: 1990-04-14
Abstract
Abstract Calcium hypochlorite compositions, containing at least about 65 percent Ca(OCl)2 on a dry weight basis and which are resistant to exothermic, self-propagating decomposition, are prepared by charging the wet crystals of neutral calcium hypochlorite dihydrate from the synthesis operation to a dryer and removing the product therefrom when the water content is within the range of 6 percent to 15 percent by weight.
Inventors
- 👤 George Roman Dychdala
- 👤 Robert James Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:08
CPC Classifications
C; C01; C01B; C01B11/00; C01B11/04; C01B11/06; C01B11/064
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
20 words
The method of claim 1 wherein the water content of the partially dried composition is from 7 to 12 percent.
Claim 2
Dependent Claim
18 words
The method of claim 1 wherein the Ca(OCl)2 content of the composition is at least about 70 percent.
Claim 3
Dependent Claim
20 words
The method of claim 3 wherein the water content of the partially dried composition is from 7 to 12 percent.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |