Patent US2391102A successfully refreshed from Google Patents.
US2391102A
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US
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Separation and purification of hydrocarbons
Assignee: Standard Oil Development Co
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Filing: 1943-01-01
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Granted: 1945-12-18
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Expires: 1963-01-01
Abstract
No abstract record available.
Inventors
- 👤 John A Patterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:24
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/10; C07C7/005; C07C7/04; C07C7/05; C07C7/08; C07C7/148; C07C7/152; C07C7/156
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-12-17 | 1949-06-18 | 1949-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-12-17 | 1953-06-18 | 1953-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-12-17 | 1957-06-18 | 1957-12-18 | $7700.00 | Window Closed / Lapsed |