US2582206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making sodium silicate compositions
Assignee: Diamond Shamrock Corp
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Filing: 1948-09-28
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Granted: 1952-01-08
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Expires: 1968-09-28
Abstract
No abstract record available.
Inventors
- 👤 George R Mcdaniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:07
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; C01B33/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
THE METHOD OF MANUFACTURING SODIUM SILICATE COMPOUNDS WHICH INCLUDES THE STEPS OF EVAPORATING SODIUM METASILICATE PENTAHYDRATE TO A WATER CONTENT OF BETWEEN 4 AND 4.5 MOLECULES OF WATER PER MOLECULE OF METASILICATE, CAUSTICIZING SAID EVAPORATED MATERIAL OT A RATIO OF NA2O TO SIO2 OF BETWEEN UNITY AND 1.5 TO 1, AND CRYSTALLIZING THE CAUSTICIZED PRODUCT.
Claim 2
Independent Claim
55 words
THE METHOD OF MANUFACTURING SODIUM SILICATE COMPOUNDS WHICH INCLUDES THE STEPS OF EVAPORATING SODIUM METASILICATE PENTAHYDRATE TO A WATER CONTENT OF BETWEEN 4 AND 4.5 MOLECULES OF WATER PER MOLECULE OF METASILICATE, CAUSTICIZING SAID EVAPORATED MATERIAL OT A RATIO OF NA2O TO SIO2 OF BETWEEN UNITY AND 1.5 TO 1, AND CRYSTALLIZING THE CAUSTICIZED PRODUCT.
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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) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |