US1995274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation catalyst
Assignee: Carbide and Carbon Chemicals Corp
•
Filing: 1932-08-10
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Granted: 1935-03-19
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Expires: 1952-08-10
Abstract
No abstract record available.
Inventors
- 👤 James F Eversole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:07
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/889; B01J23/8892; B01J23/85; B01J23/86; B01J23/862; C; C01; C01B; C01B3/00; C01B3/02; C01B3/06; C01B3/12; C01B3/16; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
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) | 1938-03-18 | 1938-09-17 | 1939-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-03-18 | 1942-09-17 | 1943-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-03-18 | 1946-09-17 | 1947-03-19 | $7700.00 | Window Closed / Lapsed |