US2096871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of phenol from a constant boiling mixture of phenol and water
Assignee: Standard Oil Development Co
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Filing: 1935-10-26
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Granted: 1937-10-26
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Expires: 1955-10-26
Abstract
No abstract record available.
Inventors
- 👤 Jr George T Atkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:54
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/005; C07C37/006; C10; C10G; C10G21/00; C10G21/06; C10G21/12; C10G21/16; C10G21/28
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) | 1940-10-25 | 1941-04-26 | 1941-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-10-25 | 1945-04-26 | 1945-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-10-25 | 1949-04-26 | 1949-10-26 | $7700.00 | Window Closed / Lapsed |