US2461346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of hydrocarbons
Assignee: Standard Oil Development Co
•
Filing: 1944-12-28
•
Granted: 1949-02-08
•
Expires: 1964-12-28
Abstract
No abstract record available.
Inventors
- 👤 John A Patterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:34
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/04; C07C7/05; C07C7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2250925A
Cited
US2371342A
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GB548734A
Cited
US2372941A
Cited
US2370530A
Cited
US2372668A
Cited
US2377049A
Cited
US2361493A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-08 | 1952-08-09 | 1953-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-08 | 1956-08-09 | 1957-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-08 | 1960-08-09 | 1961-02-08 | $7700.00 | Window Closed / Lapsed |