US3012853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystalline zeolite
Assignee: Union Carbide Corp
•
Filing: 1957-08-26
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Granted: 1961-12-12
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Expires: 1977-08-26
Abstract
No abstract record available.
Inventors
- 👤 Robert M Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:26
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C01B33/2807; C01B33/2869
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
17 words
A METHOD FOR PREPARING A POTASSIUM ZEOLITE HAVING A COMPOSITION EXPRESSED IN TERMS OF OXIDES AS FOLLOWS:
Claim 2
Independent Claim
17 words
A METHOD FOR PREPARING A POTASSIUM ZEOLITE HAVING A COMPOSITION EXPRESSED IN TERMS OF OXIDES AS FOLLOWS:
Claim 3
Dependent Claim
1 words
0$0.1K2O:AL2O3:4.1$0.8SIO2:XH2O
Claim 4
Dependent Claim
1 words
0$0.1K2O:AL2O3:4.1$0.8SIO2:XH2O
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) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |