Patent US3287282A successfully refreshed from Google Patents.
US3287282A
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Hydrogen zeolite y having improved hydrothermal stability
Assignee: Union Oil Company of California
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Filing: 1962-12-07
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Granted: 1966-11-22
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Expires: 1982-12-07
Abstract
No abstract record available.
Inventors
- 👤 Vernon E Stiles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:05
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/084; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/186; C; C01; C01B; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C01B33/2807; C01B33/2838; C01B33/2853
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A METHOD FOR THE MANUFACTURE OF A RELATIVELY HYDROTHERMALLY STABLE HYDROGEN ZEOLITE OF THE Y CRYSTAL TYPE, HAVING A SIO2/AI2O3 MOLE-RATIO BETWEEN ABOUT 4 AND 6, WHICH COMPRISES: (A) FORMING A MIXTURE COMPRISING WATER, SODIUM ALUMINATE, SODIUM HYDROXIDE AND SILICA HYDROSOL, SAID MIXTURE HAVING A MOLAR COMPOSITION WITHIN ONE OF THE FOLLOWING RANGES:
Claim 2
Independent Claim
53 words
A METHOD FOR THE MANUFACTURE OF A RELATIVELY HYDROTHERMALLY STABLE HYDROGEN ZEOLITE OF THE Y CRYSTAL TYPE, HAVING A SIO2/AI2O3 MOLE-RATIO BETWEEN ABOUT 4 AND 6, WHICH COMPRISES: (A) FORMING A MIXTURE COMPRISING WATER, SODIUM ALUMINATE, SODIUM HYDROXIDE AND SILICA HYDROSOL, SAID MIXTURE HAVING A MOLAR COMPOSITION WITHIN ONE OF THE FOLLOWING RANGES:
References Cited (Backward Citations)
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Cited
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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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |