US2214875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oil compositions, constituents thereof, and methods of manufacturing thesame
Assignee: Gulf Oil Corp
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Filing: 1938-06-25
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Granted: 1940-09-17
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Expires: 1958-06-25
Abstract
No abstract record available.
Inventors
- 👤 Cantrell Troy Lee
- 👤 Jay S Stockhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:47
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/26; C10L1/2691; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/12; C10M2223/121
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) | 1943-09-17 | 1944-03-18 | 1944-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-09-17 | 1948-03-18 | 1948-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-09-17 | 1952-03-18 | 1952-09-17 | $7700.00 | Window Closed / Lapsed |