Patent US2693676A successfully refreshed from Google Patents.
US3208939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of organic substances
Assignee: Universal Oil Products Co
•
Filing: 1963-12-12
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Granted: 1965-09-28
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Expires: 1983-12-12
Abstract
No abstract record available.
Inventors
- 👤 Edwin J Latos
- 👤 Charles M Hayes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:05
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C07; C07D; C07D209/00; C07D209/56; C07D209/58; C07D209/70; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3415; C08K5/3417; C09; C09K; C09K15/00; C09K15/04; C09K15/06; C10G; C10G73/00; C10M; C10M133/00; C10M133/02; C10L1/2222; C10L1/2225; C10L1/223; C10L1/2235; C10M2201/00; C10M2201/04; C10M2201/041; C10M2201/10; C10M2201/102; C10M2201/105; C10M2201/14; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/023; C10M2207/04; C10M2207/046; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/16; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/30; C10M2207/34; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/105; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/06; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/044; C10M2215/06; C10M2215/062; C10M2215/064; C10M2215/066; C10M2215/067; C10M2215/068; C10M2215/08; C10M2215/082; C10M2215/086; C10M2215/10; C10M2215/102; C10M2215/12; C10M2215/122; C10M2215/24; C10M2215/26; C10M2215/28; C10M2217/00; C10M2217/04; C10M2217/044; C10M2217/045; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/086; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/047; C10M2227/00; C10M2227/02; C10M2229/00; C10M2229/04; C10M2229/041; C10M2229/043; C10M2229/044; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/02; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/08; C10N2040/135; C10N2040/14; C10N2040/16; C10N2040/17; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/10; C10N2060/00; C10N2060/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
LUBRICANT COMPRISING A MAJOR PROPORTION OF AN OIL OF LUBRICATING VISCOSITY AND NORMALLY SUBJECT TO DETERIORATION DURING STORAGE, TRANSPORTATION AND USE CONTAINING, AS AN INHIBITOR AGAINST SAID DETERIORATION, A SMALL BUT STABILIZING CONCENTRATION OF THE PRODUCT OBTAINED BY REACTING (A) COMPOUND SELECTED FROM THE GROUP CONSISTING OF POLYHALOPOLYHYDROALKANONAPHTHALENEDICARBOXYLIC ACID AND ANHYDRIDE AND ESTER THEREOF WITH (B) AN AMINE, SAID PRODUCT BEING SELECTED FROM THE GROUP CONSISTING OF SALT, IMIDE, AMIDE, IMIDE-AMINE AND AMIDE-AMINE.
Claim 2
Dependent Claim
73 words
LUBRICANT COMPRISING A MAJOR PROPORTION OF AN OIL OF LUBRICATING VISCOSITY AND NORMALLY SUBJECT TO DETERIORATION DURING STORAGE, TRANSPORTATION AND USE CONTAINING, AS AN INHIBITOR AGAINST SAID DETERIORATION, A SMALL BUT STABILIZING CONCENTRATION OF THE PRODUCT OBTAINED BY REACTING (A) COMPOUND SELECTED FROM THE GROUP CONSISTING OF POLYHALOPOLYHYDROALKANONAPHTHALENEDICARBOXYLIC ACID AND ANHYDRIDE AND ESTER THEREOF WITH (B) AN AMINE, SAID PRODUCT BEING SELECTED FROM THE GROUP CONSISTING OF SALT, IMIDE, AMIDE, IMIDE-AMINE AND AMIDE-AMINE.
References Cited (Backward Citations)
US3017431A
Cited
US3088911A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |