US2694684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oil compositions
Assignee: Standard Oil Development Co
•
Filing: 1951-12-11
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Granted: 1954-11-16
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Expires: 1971-12-11
Abstract
No abstract record available.
Inventors
- 👤 Dilworth T Rogers
- 👤 Jeffrey H Bartlett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:34
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/26; C10L1/2666; C10L1/2675; C10M; C10M1/00; C10M1/08; C10M2225/00; C10M2225/02; C10N; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A LUBRICATING OIL COMPOSITION HAVING IMPROVED LOW TEMPERATURE PROPERTIES WHICH CONSISTS ESSENTIALLY OF A MAJOR PROPORTION OF A MINERAL OIL BASE STOCK AND A MINOR BUT POUR POINT DEPRESSING AMOUNT OF A POLYMER FORMED BY COPOLYMERIZING IN THE PRESENCE OF A PEROXIDE CATALYST A MATERIAL OF THE FORMULA
Claim 2
Dependent Claim
48 words
A LUBRICATING OIL COMPOSITION HAVING IMPROVED LOW TEMPERATURE PROPERTIES WHICH CONSISTS ESSENTIALLY OF A MAJOR PROPORTION OF A MINERAL OIL BASE STOCK AND A MINOR BUT POUR POINT DEPRESSING AMOUNT OF A POLYMER FORMED BY COPOLYMERIZING IN THE PRESENCE OF A PEROXIDE CATALYST A MATERIAL OF THE FORMULA
References Cited (Backward Citations)
US2365466A
Cited
US2439214A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-15 | 1958-05-17 | 1958-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-15 | 1962-05-17 | 1962-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-15 | 1966-05-17 | 1966-11-16 | $7700.00 | Window Closed / Lapsed |