US2424636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic dehydrogenation of hydrocarbons
Assignee: TIDE WATER ASSOCIATED OIL Co
•
Filing: 1942-04-02
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Granted: 1947-07-29
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Expires: 1962-04-02
Abstract
No abstract record available.
Inventors
- 👤 Jr John O Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:36
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/32; C07C5/321; C07C5/322; C07C5/373; C07C5/393; C07C5/41; C07C5/412
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1996009A
Cited
CH146850A
Cited
US2157204A
Cited
US2212112A
Cited
US2257082A
Cited
US2288336A
Cited
US2290845A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-28 | 1951-01-27 | 1951-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-28 | 1955-01-27 | 1955-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-28 | 1959-01-27 | 1959-07-29 | $7700.00 | Window Closed / Lapsed |