US2649416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oil containing a monoester of a thiodiacetic acid
Assignee: ExxonMobil Oil Corp
•
Filing: 1949-03-03
•
Granted: 1953-08-18
•
Expires: 1969-03-03
Abstract
No abstract record available.
Inventors
- 👤 Frederick P Richter
- 👤 Everett W Fuller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:59
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/085; C10N; C10N2040/00; C10N2040/135; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A LUBRICATING OIL CONTAINING A SMALL AMOUNT, SUFFICIENT TO PREVENT RUSTING OF FERROUS METAL SURFACES, OF A MONOESTER OF A THIODIACETIC ACID HAVING THE FORMULA
Claim 2
Dependent Claim
25 words
A LUBRICATING OIL CONTAINING A SMALL AMOUNT, SUFFICIENT TO PREVENT RUSTING OF FERROUS METAL SURFACES, OF A MONOESTER OF A THIODIACETIC ACID HAVING THE FORMULA
References Cited (Backward Citations)
US2371142A
Cited
US2317666A
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US2398202A
Cited
US2427501A
Cited
US2462200A
Cited
US2467303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |