US3144414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for increasing the hydrocracking activity of a supported nickel catalyst using phosphorous pentafluoride
Assignee: California Research LLC
•
Filing: 1961-03-21
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Granted: 1964-08-11
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Expires: 1981-03-21
Abstract
No abstract record available.
Inventors
- 👤 Morris B Silverman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:07
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/14; B01J27/185; B01J21/00; B01J21/06; B01J21/08; C; C10; C10G; C10G47/00; C10G47/02; C10G47/06; C10G47/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2584102A
Cited
US2767230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |