US3298780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing a crystalline zeolite
Assignee: Union Oil Company of California
•
Filing: 1961-03-21
•
Granted: 1967-01-17
•
Expires: 1981-03-21
Abstract
No abstract record available.
Inventors
- 👤 Raymond N Fleck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:14
CPC Classifications
C; C01; C01B; C01B39/00; C01B39/02; C01B39/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
1 words
9$0.2R2/VO:AL2O2:5.0$1.5SIO2:WH2O
Claim 2
Dependent Claim
18 words
A PROCESS FOR SYNTHESIZING A CRYSTALLINE ZEOLITE HAVING A COMPOSITION, EXPRESSED AS MOLE RATIOS OF OXIDES, CORRESPONDING TO
References Cited (Backward Citations)
US2971903A
Cited
US2971904A
Cited
US2996358A
Cited
US3011869A
Cited
US2995423A
Cited
GB828777A
Cited
DE1098929B
Cited
US2983670A
Cited
US3033778A
Cited
US3216789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |