US2779738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation-inhibited mineral oil compositions
Assignee: Tidewater Oil Co
•
Filing: 1953-05-06
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Granted: 1957-01-29
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Expires: 1973-05-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph J Mcbride
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:32
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2227/00; C10M2227/04; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2040/00; C10N2040/135
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A COMPOSITION COMPRISING A MINERAL OIL OF LUBRICATING GRADE IN MAJOR AMOUNT BASED ON THE WEIGHT OF THE COMPOSITION AND A SMALL AMOUNT, SUFFICIENT TO IMPART IMPROVED ANTI-OXIDANT CHARACTERISTICS TO SAID OIL, OF DIMETHYL-BIS-(P-DIMETHYLAMINOPHENYL)-SILANE.
Claim 2
Dependent Claim
34 words
A COMPOSITION COMPRISING A MINERAL OIL OF LUBRICATING GRADE IN MAJOR AMOUNT BASED ON THE WEIGHT OF THE COMPOSITION AND A SMALL AMOUNT, SUFFICIENT TO IMPART IMPROVED ANTI-OXIDANT CHARACTERISTICS TO SAID OIL, OF DIMETHYL-BIS-(P-DIMETHYLAMINOPHENYL)-SILANE.
References Cited (Backward Citations)
US2561178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |