US2476920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst for reduction of oxides of carbon with hydrogen
Assignee: Standard Oil Development Co
•
Filing: 1945-12-22
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Granted: 1949-07-19
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Expires: 1965-12-22
Abstract
No abstract record available.
Inventors
- 👤 Marnell A Segura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:42
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/78; B01J23/74; B01J23/745; B01J23/755; B01J27/00; B01J27/06; B01J27/08; B01J27/10; C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0425; C07C1/0445; C07C29/00; C07C29/15; C07C29/151; C07C29/153; C07C29/156; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/745; C07C2527/00; C07C2527/06; C07C2527/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1001279A
Cited
GB191406476A
Cited
US1158664A
Cited
US1971815A
Cited
US2183145A
Cited
US2180672A
Cited
US2365094A
Cited
US2417164A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-18 | 1953-01-17 | 1953-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-18 | 1957-01-17 | 1957-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-18 | 1961-01-17 | 1961-07-19 | $7700.00 | Window Closed / Lapsed |