US2650202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of silicate adsorbent
Assignee: TIDE WATER ASSOCIATED OIL Co
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Filing: 1951-02-15
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Granted: 1953-08-25
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Expires: 1971-02-15
Abstract
No abstract record available.
Inventors
- 👤 Russell J Hawes
- 👤 Charles C Winding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:37
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/12; C; C01; C01B; C01B33/00; C01B33/20; C01B33/36; C01B33/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A METHOD FOR PREPARING HARD GRANULAR PARTICLES OF PERCOLANT SIZE FROM A MASS OF SUB-PERCOLANT SIZE PARTICLES OF A HARD GRANULAR SILICATE OF AN ALKALINE EARTH METAL REPLACEABLE IN IONIC OR BASE EXCHANGE REACTION WITH ANOTHER ALKALINE EARTH METAL WHICH COMPRISES THE STEPS OF (A) PRODUCING FROM SAID MASS A CONTROLLED SIZE PARTICLE MASS HAVING AN AVERAGE PARTILE SIZE NOT IN EXCESS OF ABOUT 15 MICRONS, CONTAINING NOT MORE THAN A SMALL AMOUNT OF PARTICLES OVER 40 MICRONS IN SIZE AND SUCH THAT PARTICLES IN SAID CONTROLLED SIZE PARTICLE MASS COHERE UPON DRYING, SAID STEP (A) INCLUDING THE ADDITION OF WATER TO AT LEAST ONE OF THE AFORESAID MASSES IN AN AMOUNT SUFFICIENT TO PROVIDE SAID CONTROLLED SIZE PARTICLE MASS AS AN AQUEOUS SLURRY, AND (B) DRYING SAID AQUEOUS SLURRY OF THE CONTROLLED SIZE PARTICLE MASS TO A HARD DRY MASS REDUCIBLE TO A SUBSTANTIAL AMOUNT OF HARD GRANULAR PERCOLANT SIZE PARTICLES.
Claim 2
Independent Claim
152 words
A METHOD FOR PREPARING HARD GRANULAR PARTICLES OF PERCOLANT SIZE FROM A MASS OF SUB-PERCOLANT SIZE PARTICLES OF A HARD GRANULAR SILICATE OF AN ALKALINE EARTH METAL REPLACEABLE IN IONIC OR BASE EXCHANGE REACTION WITH ANOTHER ALKALINE EARTH METAL WHICH COMPRISES THE STEPS OF (A) PRODUCING FROM SAID MASS A CONTROLLED SIZE PARTICLE MASS HAVING AN AVERAGE PARTILE SIZE NOT IN EXCESS OF ABOUT 15 MICRONS, CONTAINING NOT MORE THAN A SMALL AMOUNT OF PARTICLES OVER 40 MICRONS IN SIZE AND SUCH THAT PARTICLES IN SAID CONTROLLED SIZE PARTICLE MASS COHERE UPON DRYING, SAID STEP (A) INCLUDING THE ADDITION OF WATER TO AT LEAST ONE OF THE AFORESAID MASSES IN AN AMOUNT SUFFICIENT TO PROVIDE SAID CONTROLLED SIZE PARTICLE MASS AS AN AQUEOUS SLURRY, AND (B) DRYING SAID AQUEOUS SLURRY OF THE CONTROLLED SIZE PARTICLE MASS TO A HARD DRY MASS REDUCIBLE TO A SUBSTANTIAL AMOUNT OF HARD GRANULAR PERCOLANT SIZE PARTICLES.
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) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |