US2375495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic hydrogenation processes
Assignee: Procter and Gamble Co
•
Filing: 1942-07-07
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Granted: 1945-05-08
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Expires: 1962-07-07
Abstract
No abstract record available.
Inventors
- 👤 Albert S Richardson
- 👤 James E Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:10
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/86; B01J23/868; C; C07; C07C; C07C29/00; C07C29/132; C07C29/136; C07C29/147; C07C29/149
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) | 1948-05-07 | 1948-11-06 | 1949-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-05-07 | 1952-11-06 | 1953-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-05-07 | 1956-11-06 | 1957-05-08 | $7700.00 | Window Closed / Lapsed |