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US2330115A
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US
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Catalytic isomerization of 1-olefins to 2-olefins
Assignee: Phillips Petroleum Co
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Filing: 1940-09-30
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Granted: 1943-09-21
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Expires: 1960-09-30
Abstract
No abstract record available.
Inventors
- 👤 Harry E Drennan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:02
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/23; C07C5/25; C07C5/2506; C07C5/2525; C07C5/2206; C07C5/2226; C07C5/2233; C07C5/2537; C07C2521/00; C07C2521/02; C07C2521/04; C07C2527/00; C07C2527/02; C07C2527/053; C07C2527/054; C07C2527/14; C07C2527/16; C07C2527/167; C07C2527/173
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) | 1946-09-20 | 1947-03-22 | 1947-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-09-20 | 1951-03-22 | 1951-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-09-20 | 1955-03-22 | 1955-09-21 | $7700.00 | Window Closed / Lapsed |