US3105819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating compositions
Assignee: Shell USA Inc
•
Filing: 1959-12-21
•
Granted: 1963-10-01
•
Expires: 1979-12-21
Abstract
No abstract record available.
Inventors
- 👤 William S Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:14
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C08; C08F; C08F8/00; C08F8/40; C10M2203/00; C10M2203/06; C10M2203/10; C10M2205/00; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/28; C10M2207/282; C10M2207/283; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/107; C10M2225/00; C10M2225/02; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2020/00; C10N2020/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF LUBRICATING OIL AND FROM ABOUT 0.1% TO ABOUT 10% OF AN OIL-SOLUBLE POLYPHOSPHONATED ELASTOMERIC ETHYLENE/PROPYLENE COPOLYMER IN WHICH THE PHOSPHONO UNITS ARE REPRESENTED BY
Claim 2
Dependent Claim
33 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF LUBRICATING OIL AND FROM ABOUT 0.1% TO ABOUT 10% OF AN OIL-SOLUBLE POLYPHOSPHONATED ELASTOMERIC ETHYLENE/PROPYLENE COPOLYMER IN WHICH THE PHOSPHONO UNITS ARE REPRESENTED BY
References Cited (Backward Citations)
US2571332A
Cited
US2636027A
Cited
US2557805A
Cited
US2736707A
Cited
US2712528A
Cited
US2682522A
Cited
US2854434A
Cited
US2829137A
Cited
US2939841A
Cited
US2900378A
Cited
US2918457A
Cited
US3008939A
Cited
US2914515A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |