US2431206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conversion of hydrocarbon oils
Assignee: Standard Oil Development Co
•
Filing: 1946-11-20
•
Granted: 1947-11-18
•
Expires: 1966-11-20
Abstract
No abstract record available.
Inventors
- 👤 William E Spicer
- 👤 Jerry A Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:40
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1784509A
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US1397113A
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GB490853A
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US2326166A
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US2288874A
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US2319590A
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US2320799A
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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) | 1950-11-17 | 1951-05-19 | 1951-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-17 | 1955-05-19 | 1955-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-17 | 1959-05-19 | 1959-11-18 | $7700.00 | Window Closed / Lapsed |