US2462861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regeneration of a hydrocarbon synthesis catalyst
Assignee: Standard Oil Co
•
Filing: 1947-03-29
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Granted: 1949-03-01
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Expires: 1967-03-29
Abstract
No abstract record available.
Inventors
- 👤 Robert C Gunness
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:31
CPC Classifications
C; C10; C10G; C10G2/00; C10G2/30; C10G2/32; C10G2/33; C10G2/331; C10G2/332; B; B01; B01J; B01J23/00; B01J23/90; B01J23/94; C10G2/34; C10G2/342; C10G2/344
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-29 | 1952-08-30 | 1953-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-29 | 1956-08-30 | 1957-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-29 | 1960-08-30 | 1961-03-01 | $7700.00 | Window Closed / Lapsed |