US3544650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystalline aluminosilicate catalyst modified by solid-state reaction with alkali metal halide
Assignee: Mobil Oil AS
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Filing: 1968-09-20
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Granted: 1970-12-01
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Expires: 1988-09-20
Abstract
No abstract record available.
Inventors
- 👤 William E Garwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:15
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/061; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/186; C; C07; C07C; C07C4/00; C07C4/02; C07C4/06; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/08; C07C2529/18; C07C2529/50; C07C2529/60; C07C2529/65; C07C2529/70
Claims Analysis
Total Claims: 0
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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) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |