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US2470445A
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Production of high octane number aviation gasoline
Assignee: Standard Oil Development Co
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Filing: 1947-10-29
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Granted: 1949-05-17
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Expires: 1967-10-29
Abstract
No abstract record available.
Inventors
- 👤 Kenneth M Purdy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:58
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/04; C10L1/06; C10G; C10G11/00; C10G11/14; C10G11/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2257723A
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US2303107A
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US2235133A
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US2289716A
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US2341269A
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US2423637A
Cited
US2432912A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-16 | 1952-11-15 | 1953-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-16 | 1956-11-15 | 1957-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-16 | 1960-11-15 | 1961-05-17 | $7700.00 | Window Closed / Lapsed |