US2796423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Formals of lubricating grade
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1952-12-01
•
Granted: 1957-06-18
•
Expires: 1972-12-01
Abstract
No abstract record available.
Inventors
- 👤 Delmer L Cottle
- 👤 David W Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:30
CPC Classifications
C; C10; C10M; C10M3/00; C10M2203/00; C10M2203/10; C10M2203/102; C10M2203/104; C10M2203/106; C10M2203/108; C10M2205/00; C10M2205/02; C10M2205/026; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/026; C10M2207/027; C10M2207/04; C10M2207/044; C10M2207/046; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/16; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/287; C10M2207/30; C10M2207/304; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/086; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/106; C10M2211/00; C10M2211/04; C10M2211/042; C10M2211/06; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/16; C10M2215/20; C10M2215/202; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2219/10; C10M2219/104; C10M2219/108; C10M2223/00; C10M2223/12; C10M2223/121; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2020/00; C10N2020/01; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13; C10N2050/00; C10N2050/10; C10N2060/00; C10N2060/04; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
39 words
AS A SYNTHETIC LUBRICANT A FORMULA HAVING AN ASTM POUR POINT BELOW ABOUT 35*F., A FLASH POINT ABOVE ABOUT 300*F., AND A KINEMATIC VISCOSITY AT 240*F. WITHIN THE RANGE OF 2 TO 60 CENTISTOKES, SAID FORMULA HAVING THE FORMULA
Claim 2
Dependent Claim
39 words
AS A SYNTHETIC LUBRICANT A FORMULA HAVING AN ASTM POUR POINT BELOW ABOUT 35*F., A FLASH POINT ABOVE ABOUT 300*F., AND A KINEMATIC VISCOSITY AT 240*F. WITHIN THE RANGE OF 2 TO 60 CENTISTOKES, SAID FORMULA HAVING THE FORMULA
Claim 3
Dependent Claim
38 words
AS A SYNTHETIC LUBRICANT, A FORMAL HAVING A POUR POINT BELOW ABOUT 35*F., A FLASH POINT ABOVE ABOUT 300*F., AND A KINEMATIC VISCOSITY AT 210*F. WITHIN THE RANGE OF 2 TO 60 CENTISTOKES, SAID FORMAL HAVING THE FORMULA
Claim 4
Dependent Claim
38 words
AS A SYNTHETIC LUBRICANT, A FORMAL HAVING A POUR POINT BELOW ABOUT 35*F., A FLASH POINT ABOVE ABOUT 300*F., AND A KINEMATIC VISCOSITY AT 210*F. WITHIN THE RANGE OF 2 TO 60 CENTISTOKES, SAID FORMAL HAVING THE FORMULA
References Cited (Backward Citations)
US2036304A
Cited
GB425396A
Cited
US2321557A
Cited
US2350350A
Cited
US2397602A
Cited
US2379703A
Cited
US2388409A
Cited
US2436347A
Cited
US2473994A
Cited
US2585182A
Cited
US2512722A
Cited
US2628974A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-17 | 1960-12-17 | 1961-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-17 | 1964-12-17 | 1965-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-17 | 1968-12-17 | 1969-06-18 | $7700.00 | Window Closed / Lapsed |