Patent US3321272A successfully refreshed from Google Patents.
US3321272A
Expired / Lapsed
US
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Process for making crystalline zeolites
Assignee: Mobil Oil AS
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Filing: 1962-12-27
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Granted: 1967-05-23
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Expires: 1982-12-27
Abstract
No abstract record available.
Inventors
- 👤 George T Kerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:36
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C01B33/2807; C01B33/2838; Y; Y10; Y10S; Y10S423/00; Y10S423/21; Y10S423/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
IN A METHOD FOR SYNTHESIZING A SOLID CRYSTALLINE ALUMINOSILICATE MOLECULAR SIEVE HAVING THE CRYSTAL STRUCTURE OF FAUJASITE, THE IMPROVEMENT COMPRISING SEEDING THE REACTION MIXTURE UTILIZED TO FORM SAID MOLECULAR SIEVE WITH SEED CRYSTALS HAVING THE CYRYSTAL STRUCTURE OF FAUJASITE AND WHICH HAVE BEEN MADE FROM A REACTION MIXTURE USED TO PREPARE SAID CRYSTALLINE ALUMINOSILICATE MOLECULAR SIEVE PRIOR TO COMPLETING CRYSTALLIZATION OF SAID LAST MENTIONED REACTION MIXTURE AND BEFORE SUCH TIME AS CRYSTALS OTHER THAN THOSE HAVING THE CRYSTAL STRUCTURE OF FAUJASITE ARE FORMED.
Claim 2
Dependent Claim
83 words
IN A METHOD FOR SYNTHESIZING A SOLID CRYSTALLINE ALUMINOSILICATE MOLECULAR SIEVE HAVING THE CRYSTAL STRUCTURE OF FAUJASITE, THE IMPROVEMENT COMPRISING SEEDING THE REACTION MIXTURE UTILIZED TO FORM SAID MOLECULAR SIEVE WITH SEED CRYSTALS HAVING THE CYRYSTAL STRUCTURE OF FAUJASITE AND WHICH HAVE BEEN MADE FROM A REACTION MIXTURE USED TO PREPARE SAID CRYSTALLINE ALUMINOSILICATE MOLECULAR SIEVE PRIOR TO COMPLETING CRYSTALLIZATION OF SAID LAST MENTIONED REACTION MIXTURE AND BEFORE SUCH TIME AS CRYSTALS OTHER THAN THOSE HAVING THE CRYSTAL STRUCTURE OF FAUJASITE ARE FORMED.
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) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |