US2640811A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Demulsifiable lubricant compositions
Assignee: Standard Oil Co
•
Filing: 1951-03-26
•
Granted: 1953-06-02
•
Expires: 1971-03-26
Abstract
No abstract record available.
Inventors
- 👤 Beretvas Helen Sellei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:21
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2203/00; C10M2203/10; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/16; C10M2211/00; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/04; C10M2219/042; C10M2219/044; C10M2219/08; C10M2219/082; C10M2223/00; C10M2223/08; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2010/00; C10N2010/04; C10N2010/08; C10N2040/00; C10N2040/20; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A LUBRICANT COMPOSITION RESISTANT TO THE FORMATION OF STABLE EMULSION WITH WATER COMPRISING ESSENTIALLY A MAJOR PROPORTION OF A HYDROCARBON LUBRICATING OIL AND THE FOLLOWING CONSTITUENTS IN THE FOLLOWING APPROXIMATE WEIGHT PERCENTAGES:
Claim 2
Dependent Claim
32 words
A LUBRICANT COMPOSITION RESISTANT TO THE FORMATION OF STABLE EMULSION WITH WATER COMPRISING ESSENTIALLY A MAJOR PROPORTION OF A HYDROCARBON LUBRICATING OIL AND THE FOLLOWING CONSTITUENTS IN THE FOLLOWING APPROXIMATE WEIGHT PERCENTAGES:
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) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |