US2448290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of synthesis gas
Assignee: Texaco Inc
•
Filing: 1943-12-18
•
Granted: 1948-08-31
•
Expires: 1963-12-18
Abstract
No abstract record available.
Inventors
- 👤 Harold V Atwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:51
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/22; C01B3/24; C01B3/28; C01B3/32; C01B3/34; C01B3/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1984380A
Cited
US2253486A
Cited
US2355753A
Cited
US2325516A
Cited
US2417973A
Cited
US2360463A
Cited
US2363274A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-31 | 1952-03-01 | 1952-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-31 | 1956-03-01 | 1956-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-31 | 1960-03-01 | 1960-08-31 | $7700.00 | Window Closed / Lapsed |