Patent US2768898A successfully refreshed from Google Patents.
US2768898A
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Sodium chloride composition
Assignee: Columbia Southern Chemical Corp
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Filing: 1952-03-27
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Granted: 1956-10-30
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Expires: 1972-03-27
Abstract
No abstract record available.
Inventors
- 👤 Waldo Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:26
CPC Classifications
C; C01; C01D; C01D3/00; C01D3/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
AN EDIBLE SALT COMPOSITION STABILZIED AGAINST AGGLOMERATION DUE TO ABSORPTION OF MOISTURE COMPRISING AN EDIBLE GRADE OF CRYSTALLING SODIUM CHLORIDE AND FROM 1/2 TO 5 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF SODIUM CHLORIDE, OF FINELY DIVIDED, PRECIPITATED, HYDRATED SILICA HAVING THE COMPOSITION H2O.(SIO2)X WHERE X IS 3 TO 50. A SURFACE AREA OF 75 TO 200 SQUARE METERS PER GRAM OF SAID SILICA, AND AN AVERAGE ULTIMATE PARTICLE SIZE BELOW 0.1 MICRON.
Claim 2
Dependent Claim
74 words
AN EDIBLE SALT COMPOSITION STABILZIED AGAINST AGGLOMERATION DUE TO ABSORPTION OF MOISTURE COMPRISING AN EDIBLE GRADE OF CRYSTALLING SODIUM CHLORIDE AND FROM 1/2 TO 5 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF SODIUM CHLORIDE, OF FINELY DIVIDED, PRECIPITATED, HYDRATED SILICA HAVING THE COMPOSITION H2O.(SIO2)X WHERE X IS 3 TO 50. A SURFACE AREA OF 75 TO 200 SQUARE METERS PER GRAM OF SAID SILICA, AND AN AVERAGE ULTIMATE PARTICLE SIZE BELOW 0.1 MICRON.
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) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |