US2439463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil-wax separator
Assignee: TIDE WATER ASSOCIATED OIL Co
•
Filing: 1943-12-18
•
Granted: 1948-04-13
•
Expires: 1963-12-18
Abstract
No abstract record available.
Inventors
- 👤 Adam H Gebauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:45
CPC Classifications
C; C10; C10G; C10G73/00; C10G73/36; B; B01; B01D; B01D29/00; B01D29/44; B01D29/48; B01D29/62; B01D29/64; B01D29/6469; B01D29/6476; B01D29/76; B01D29/80; B01D29/82; B01D29/828; B01D29/88; B01D29/94; B01D33/00; B01D33/06; B01D33/067; B01D35/00; B01D35/16; B01D35/18; B01D2201/00; B01D2201/40; B01D2201/4046; B01D37/00
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-13 | 1951-10-13 | 1952-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-13 | 1955-10-13 | 1956-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-13 | 1959-10-13 | 1960-04-13 | $7700.00 | Window Closed / Lapsed |