US2433079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic isomerization process
Assignee: Standard Oil Development Co
•
Filing: 1939-09-30
•
Granted: 1947-12-23
•
Expires: 1959-09-30
Abstract
No abstract record available.
Inventors
- 👤 Jr James M Whiteley
- 👤 Charles S Lynch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:10
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2767; C07C5/277; C07C5/2778; C07C5/2786; C07C5/2789; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB193071A
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US1716372A
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US1825270A
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US1882000A
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GB255159A
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GB364665A
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US2125234A
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US2169494A
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US2249366A
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US2220092A
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US2208362A
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US2265548A
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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) | 1950-12-22 | 1951-06-23 | 1951-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-22 | 1955-06-23 | 1955-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-22 | 1959-06-23 | 1959-12-23 | $7700.00 | Window Closed / Lapsed |