US2463741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Desulfurization and reforming process
Assignee: Union Oil Company of California
•
Filing: 1943-04-05
•
Granted: 1949-03-08
•
Expires: 1963-04-05
Abstract
No abstract record available.
Inventors
- 👤 Alva C Byrns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:40
CPC Classifications
C; C10; C10G; C10G69/00; C10G69/02; C10G69/08
Claims Analysis
Total Claims: 0
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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) | 1952-03-07 | 1952-09-06 | 1953-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-07 | 1956-09-06 | 1957-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-07 | 1960-09-06 | 1961-03-08 | $7700.00 | Window Closed / Lapsed |