US2301802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of desulphurizing hydrocarbons
Assignee: Standard Oil Co
•
Filing: 1939-09-09
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Granted: 1942-11-10
•
Expires: 1959-09-09
Abstract
No abstract record available.
Inventors
- 👤 Robert E Burk
- 👤 Everett C Hughes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:44
CPC Classifications
C; C10; C10G; C10G17/00; C10G17/095; C10G29/00; C10G45/00; C10G45/02; C10G45/04; C10G45/24; C10G45/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-11-09 | 1946-05-11 | 1946-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-11-09 | 1950-05-11 | 1950-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-11-09 | 1954-05-11 | 1954-11-10 | $7700.00 | Window Closed / Lapsed |