US2424637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and catalyst for aromatizing aliphatic hydrocarbons
Assignee: TIDE WATER ASSOCIATED OIL Co
•
Filing: 1943-06-03
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Granted: 1947-07-29
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Expires: 1963-06-03
Abstract
No abstract record available.
Inventors
- 👤 Jr John O Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:12
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/32; C07C5/373; C07C5/393; C07C5/41; C07C5/412
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2322857A
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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 |