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US2497964A
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Synthesis of hydrocarbons
Assignee: Standard Oil Development Co
•
Filing: 1946-07-20
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Granted: 1950-02-21
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Expires: 1966-07-20
Abstract
No abstract record available.
Inventors
- 👤 Simpson D Sumerford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:47
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0455
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE22415E
Cited
US2171009A
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US2231990A
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US2406851A
Cited
US2417164A
Cited
US2393909A
Cited
US2449071A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |