Patent US2979381A successfully refreshed from Google Patents.
US2979381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing zeolite x
Assignee: Union Carbide Corp
•
Filing: 1958-12-01
•
Granted: 1961-04-11
•
Expires: 1978-12-01
Abstract
No abstract record available.
Inventors
- 👤 Joseph G Gottstine
- 👤 Emery H Westerland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:48
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C01B33/2807; C01B33/2838; C01B33/2846; Y; Y10; Y10S; Y10S423/00; Y10S423/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
AN IMPROVED PROCESS FOR THE PRODUCTION OF SODIUM ZEOLITE X WHICH COMPRISES: (1) PREPARING AT ABOUT AMBIENT TEMPERATURE A REACTANT MIXTURE HAVING THE COMPOSITION EXPRESSED IN TERMS OF OXIDE MOLE RATIOS ABOUT AS FOLLOWS:
Claim 2
Dependent Claim
34 words
AN IMPROVED PROCESS FOR THE PRODUCTION OF SODIUM ZEOLITE X WHICH COMPRISES: (1) PREPARING AT ABOUT AMBIENT TEMPERATURE A REACTANT MIXTURE HAVING THE COMPOSITION EXPRESSED IN TERMS OF OXIDE MOLE RATIOS ABOUT AS FOLLOWS:
References Cited (Backward Citations)
US2882244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |