US3216932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Salt product and method of making and using same
Assignee: Diamond Crystal Salt Co
•
Filing: 1962-11-08
•
Granted: 1965-11-09
•
Expires: 1982-11-08
Abstract
No abstract record available.
Inventors
- 👤 John F Heiss
- 👤 Kolasinski Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:52
CPC Classifications
B; B01; B01J; B01J49/00; B01J49/50
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
71 words
A METHOD OF SIMULTANEOUSLY REJUVENATING ION EXCHANGE RESINS FOULED WITH IRON AND REGENERATING THE SAME, WHICH COMPRISES THE STEPS OF FORMING A BRINE FROM A WATER SOLUBLE PARTICULATED MATERIAL HAVING ON THE SURFACE OF AT LEAST A PORTION OF THE PARTICLES THEREOF ABOUT 0.02% TO ABOUT 0.5% BY WEIGHT OF A COMPOSITION CONTAINING AS ITS ESSENTIAL CONSTITUENTS, (1) AT LEAST ONE MINERAL ACID, (2) A DIPHENYL ETHER COMPOUND HAVING THE FORMULA
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US2990375A
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US3078224A
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US3110683A
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US3083166A
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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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |