US2790004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon oxidation
Assignee: Phillips Petroleum Co
•
Filing: 1949-10-27
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Granted: 1957-04-23
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Expires: 1969-10-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles Francis Dougherty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:00
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C29/00; C07C29/48; C07C29/50; C07C45/34; C07C45/36; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1813606A
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US2223494A
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US2430865A
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US2380675A
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US2447794A
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US2438125A
Cited
US2447400A
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US2548435A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |