US2145239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soluble oil
Assignee: Union Oil Company of California
•
Filing: 1935-10-28
•
Granted: 1939-01-31
•
Expires: 1955-10-28
Abstract
No abstract record available.
Inventors
- 👤 Marcellus T Flaxman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:11
CPC Classifications
C; C10; C10M; C10M173/00; C09; C09K; C09K23/00; C09K23/017; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/10; C10M2207/16; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10N; C10N2040/00; C10N2040/20; C10N2040/22; C10N2040/46; C10N2050/00; C10N2050/01; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06
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) | 1942-01-30 | 1942-08-01 | 1943-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-01-30 | 1946-08-01 | 1947-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-01-30 | 1950-08-01 | 1951-01-31 | $7700.00 | Window Closed / Lapsed |