US2882228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal working lubricants
Assignee: Shell Development Co
•
Filing: 1955-06-20
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Granted: 1959-04-14
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Expires: 1975-06-20
Abstract
No abstract record available.
Inventors
- 👤 Forrest J Watson
- 👤 John E Weigel
- 👤 Francis C Younger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:20
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2203/00; C10M2203/06; C10M2205/00; C10M2205/14; C10M2205/16; C10M2205/17; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/023; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/125; C10M2207/129; C10M2207/22; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/284; C10M2207/285; C10M2207/286; C10M2207/287; C10M2207/289; C10M2207/34; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/082; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/108; C10M2209/109; C10M2209/12; C10M2211/00; C10M2211/02; C10M2211/04; C10M2211/044; C10M2211/06; C10M2211/08; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/24; C10M2215/26; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2219/084; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/06; C10M2223/063; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/05; C10N; C10N2040/00; C10N2040/08; C10N2040/135; C10N2040/20; C10N2040/22; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF A MINERAL LUBRICATING OIL CONTAINING FROM ABOUT 0.1% TO ABOUT 10% EACH OF A LONG CHAIN HIGHLY BRANCHED PRIMARY TERTIARY ALIPHATIC AMINE OF AT LEAST 8 CARBON ATOMS SALT OF A CHLOROMETHANPHOSPHONIC ACID, AND A PARTIAL ESTER OF A POLYHYDRIC ALCOHOL HAVING FROM 2 TO 6 CARBON ATOMS AND A C10-C20 FATTY ACID.
Claim 2
Dependent Claim
62 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF A MINERAL LUBRICATING OIL CONTAINING FROM ABOUT 0.1% TO ABOUT 10% EACH OF A LONG CHAIN HIGHLY BRANCHED PRIMARY TERTIARY ALIPHATIC AMINE OF AT LEAST 8 CARBON ATOMS SALT OF A CHLOROMETHANPHOSPHONIC ACID, AND A PARTIAL ESTER OF A POLYHYDRIC ALCOHOL HAVING FROM 2 TO 6 CARBON ATOMS AND A C10-C20 FATTY ACID.
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) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |