Patent US3090753A successfully refreshed from Google Patents.
US3090753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ester oil compositions containing acid anhydride
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1960-08-02
•
Granted: 1963-05-21
•
Expires: 1980-08-02
Abstract
No abstract record available.
Inventors
- 👤 Alfred H Matuszak
- 👤 George J Allen
- 👤 Stephen J Metro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:14
CPC Classifications
C; C10; C10M; C10M3/00; C07; C07C; C07C67/00; C07C67/48; C07C67/62; C07C69/00; C07C69/34; C07C69/44; C10M2205/00; C10M2205/04; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/129; C10M2207/14; C10M2207/142; C10M2207/22; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/30; C10M2207/302; C10M2207/304; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/11; C10M2209/111; C10M2209/112; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/066; C10M2219/00; C10M2219/10; C10M2219/104; C10M2219/108; C10M2221/00; C10M2221/04; C10M2221/043; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2227/00; C10M2227/06; C10M2227/065; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A SYNTHETIC ESTER LUBRICATING OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF CARBOXYLIC ACID ESTER LUBRICATING OIL AND ABOUT 0.001 TO 5.0 WT. PERCENT OF PYROMETALLITIC DIANHYDRIDE.
Claim 2
Dependent Claim
26 words
A SYNTHETIC ESTER LUBRICATING OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF CARBOXYLIC ACID ESTER LUBRICATING OIL AND ABOUT 0.001 TO 5.0 WT. PERCENT OF PYROMETALLITIC DIANHYDRIDE.
References Cited (Backward Citations)
US2334158A
Cited
US2788326A
Cited
GB809198A
Cited
US2806860A
Cited
US2809160A
Cited
US2960469A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |