US2503401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricants
Assignee: Standard Oil Co
•
Filing: 1949-03-26
•
Granted: 1950-04-11
•
Expires: 1969-03-26
Abstract
No abstract record available.
Inventors
- 👤 Leonard A Mattano
- 👤 Lawson W Mixon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:38
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/24; C10L1/2406; C10L1/2418; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/16; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/025; C10M2207/40; C10M2207/404; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/085; C10N; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/135; C10N2040/14; C10N2040/16; C10N2040/17; C10N2040/20; C10N2040/22; C10N2040/46; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
AN OLEAGINOUS MATERIAL CONTAINING FROM ABOUT 0.001% TO ABOUT 2% OF A 1,3,4-TRICARBOXY2-THIABUTANE HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
17 words
AN OLEAGINOUS MATERIAL CONTAINING FROM ABOUT 0.001% TO ABOUT 2% OF A 1,3,4-TRICARBOXY2-THIABUTANE HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-10 | 1953-10-10 | 1954-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-10 | 1957-10-10 | 1958-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-10 | 1961-10-10 | 1962-04-11 | $7700.00 | Window Closed / Lapsed |