US3732082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing substantially dust free calcium chloride particulate
Assignee: Dow Chemical Co
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Filing: 1970-08-11
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Granted: 1973-05-08
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Expires: 1990-08-11
Abstract
Abstract A PROCESS FOR PRODUCING SUBSTANTIALLY DUST AND FINES FREE PARTICULATE CALCIUM CHLORIDE WHEREIN AT LEAST THE PARTICULATE SURFACE IS GLAZED BY EXPOSURE TO HEAT ABOVE THE TEMPERATURE AT WHICH A GLAZE OCCURSP WHILE SIMULTANEOUSLY PREVENTING AGGLOMERATION OF THE PARTICULATE BY AGITATION UNTIL THE CALCIUM CHLORIDE SURFACE COOLS TO BELOW THIS TEMPERATURE. EXPOSURE TIME TO TEMPERATURES IN EXCESS OF THE GLAZE TEMPERATURE DETERMINES THE DEPTH OF THE GLAZED ZONE.
Inventors
- 👤 R Kolat
- 👤 R Hudson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:28
CPC Classifications
C; C01; C01F; C01F11/00; C01F11/20; C01F11/24; C01F11/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |