US3306852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Imides of arene polyamines used as lubricating oil additives
Assignee: Chevron USA Inc
•
Filing: 1964-06-18
•
Granted: 1967-02-28
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Expires: 1984-06-18
Abstract
No abstract record available.
Inventors
- 👤 Yngve G Hendrickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:45
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/34; C07D207/36; C07D207/40; C07D207/404; C07D207/408; C07D207/412; C10; C10M; C10M133/00; C10M133/52; C10M133/56; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2203/06; C10M2205/00; C10M2205/02; C10M2205/024; C10M2205/026; C10M2207/00; C10M2207/04; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/105; C10M2209/108; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/066; C10M2215/08; C10M2215/082; C10M2215/086; C10M2215/12; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/28; C10M2215/30; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10M2227/00; C10M2227/02; C10M2229/00; C10M2229/04; C10M2229/041; C10M2229/043; C10M2229/044; C10M2229/045; C10M2229/046; C10M2229/047; C10M2229/048; C10N; C10N2010/00; C10N2010/04; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
8 words
THE BIS-DERIVATIVE OF A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
8 words
THE BIS-DERIVATIVE OF A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
44 words
A LUBRICATING OIL COMPOSITION COMPRISING AN OIL OF LUBRICATING VISCOSITY, FROM 0.1 TO 80 WEIGHT PERCENT OF A COMPOUND AS DESCRIBED IN CLAIM 1 AND FROM ABOUT 6 TO 50 MM./KG. OF ZINC 3,3-DIHYDRDOCARBYL DITHIOPHOSPHOROATE, WHEREIN SAID HYDROCARBYL GROUPS ARE FROM 20 CARBON ATOMS.
References Cited (Backward Citations)
US3219666A
Cited
US3194812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |