US2487466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic desulfurization of hydrocarbons
Assignee: Union Oil Company of California
•
Filing: 1945-04-09
•
Granted: 1949-11-08
•
Expires: 1965-04-09
Abstract
No abstract record available.
Inventors
- 👤 Paul G Nahin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:06
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/02; C10G45/04; C10G45/06; C10G45/08; B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/882; C10G35/00; C10G35/04; C10G35/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2270090A
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US2304168A
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US2422372A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |