US3480531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenation of hydrocarbons with mixed tin and nickel catalyst
Assignee: Chevron USA Inc
•
Filing: 1968-07-12
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Granted: 1969-11-25
•
Expires: 1988-07-12
Abstract
No abstract record available.
Inventors
- 👤 Bernard F Mulaskey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:10
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/835; C; C07; C07C; C07C5/00; C07C5/02; C07C5/10; C10; C10G; C10G45/00; C10G45/44; C10G45/46; C10G45/48; C07C2521/00; C07C2521/06; C07C2521/08; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/755; C07C2523/76; C07C2523/835
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2708180A
Cited
US2910426A
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US3162597A
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US3158567A
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US3232863A
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US3201345A
Cited
US3399132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |