US3216939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of lubricants
Assignee: Universal Oil Products Co
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Filing: 1962-06-18
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Granted: 1965-11-09
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Expires: 1982-06-18
Abstract
No abstract record available.
Inventors
- 👤 Henryk A Cyba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:35
CPC Classifications
C; C10; C10M; C10M7/00; C10M2201/00; C10M2201/04; C10M2201/041; C10M2201/06; C10M2201/062; C10M2201/10; C10M2201/102; C10M2201/103; C10M2201/105; C10M2201/14; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/027; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/125; C10M2207/129; C10M2207/16; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2211/00; C10M2211/02; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/06; C10M2215/067; C10M2215/10; C10M2215/102; C10M2215/12; C10M2215/22; C10M2215/223; C10M2215/224; C10M2215/225; C10M2215/227; C10M2215/24; C10M2215/26; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/045; C10M2223/12; C10M2225/00; C10M2225/04; C10M2227/00; C10M2227/02; C10M2229/00; C10M2229/04; C10M2229/041; C10M2229/043; C10M2229/044; C10M2229/05; C10M2229/051; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13; C10N2050/00; C10N2050/08; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
LUBRICANT SELECTED FROM THE GROUP CONSISTING OF GREASE AND OIL OF LUBRICATING VISCOSITY CONTAINING, AS AN INHIBITOR AGAINST OXIDATIVE DETERIORATION, A STABILIZING CONCENTRATION OF A 4,4''-DICYCLOHEXYLDIAMINODIPHENYL METHANE.
Claim 2
Dependent Claim
27 words
LUBRICANT SELECTED FROM THE GROUP CONSISTING OF GREASE AND OIL OF LUBRICATING VISCOSITY CONTAINING, AS AN INHIBITOR AGAINST OXIDATIVE DETERIORATION, A STABILIZING CONCENTRATION OF A 4,4''-DICYCLOHEXYLDIAMINODIPHENYL METHANE.
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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |