US2221162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oil
Assignee: Texaco Inc
•
Filing: 1938-08-06
•
Granted: 1940-11-12
•
Expires: 1958-08-06
Abstract
No abstract record available.
Inventors
- 👤 Harry V Ashburn
- 👤 William G Alsop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:03
CPC Classifications
C; C10; C10M; C10M141/00; C10M141/10; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/16; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/06; C10M2215/062; C10M2215/24; C10M2215/26; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/086; C10M2223/00; C10M2223/10; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2070/00; C10N2070/02
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) | 1943-11-12 | 1944-05-13 | 1944-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-11-12 | 1948-05-13 | 1948-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-11-12 | 1952-05-13 | 1952-11-12 | $7700.00 | Window Closed / Lapsed |