US3260672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic ester lubricating oil containing certain haloalkyl carboxylic acid esters
Assignee: Shell USA Inc
•
Filing: 1965-04-15
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Granted: 1966-07-12
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Expires: 1985-04-15
Abstract
No abstract record available.
Inventors
- 👤 Alexander C B Macphail
- 👤 Francis H Waight
- 👤 Southern Derek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:15
CPC Classifications
C; C10; C10M; C10M131/00; C10M131/08; C10M131/12; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/026; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/129; C10M2207/22; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/30; C10M2207/304; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/082; C10M2209/084; C10M2209/10; C10M2209/102; C10M2209/103; C10M2209/108; C10M2209/109; C10M2209/11; C10M2209/112; C10M2211/00; C10M2211/02; C10M2211/024; C10M2211/04; C10M2211/044; C10M2211/06; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/22; C10M2215/221; C10M2215/222; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2219/00; C10M2219/10; C10M2219/104; C10M2219/108; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/047; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2020/00; C10N2020/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A SYNTHETIC LUBRICATING OIL COMPRISING A MAJOR AMOUNT OF A SYNTHETIC ESTER LUBRICATING OIL AND MINOR AMOUNT SUFFICIENT TO ENHANCE THE LOAD-CARRYING CAPACITY OF THE OIL OF A HALOALKYL CARBOXYLIC ACID ESTER HAVING THE FORMULA
Claim 2
Dependent Claim
35 words
A SYNTHETIC LUBRICATING OIL COMPRISING A MAJOR AMOUNT OF A SYNTHETIC ESTER LUBRICATING OIL AND MINOR AMOUNT SUFFICIENT TO ENHANCE THE LOAD-CARRYING CAPACITY OF THE OIL OF A HALOALKYL CARBOXYLIC ACID ESTER HAVING THE FORMULA
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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |