US3248326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant grease
Assignee: Standard Oil Co
•
Filing: 1963-06-03
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Granted: 1966-04-26
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Expires: 1983-06-03
Abstract
No abstract record available.
Inventors
- 👤 Reuben A Swenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:36
CPC Classifications
C; C10; C10M; C10M5/00; C10M2205/00; C10M2211/00; C10M2211/06; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10M2229/051; C10N; C10N2020/00; C10N2020/01; C10N2040/00; C10N2040/02; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A GREASE-TYPE LUBRICANT COMPOSITION ESSENTIALLY OF AN OLEAGINOUS LUBRICANT VEHICLE SELECTED FROM THE GROUP CONSISTING OF A HYDROCARBON OIL, A SILCONE LUBRICATING OIL AND A SYNTHETIC ESTER LUBRICATING OIL AND FROM ABOUT 20 TO ABOUT 60 PERCENT BY WEIGHT OF COPOLYMER OF TETRAFLUOROETHYLENE AND HEXAFLUOROPROPYLENE SAID COPOLYMER HAVING A MELTING POINT FROM ABOUT 545 TO 565*F., A SPECIFIC HEAT OF .28 CAL/G/*C., A REFRACTIVE INDEX AT 475U OF ABOUT 1.344, A ROCKWELL HARDNESS OF R25 AND A WATER ABSORPTION OF .01%, AND SAID COPOLYMER HAVING THE FOLLOWING REPEATING UNIT:
Claim 2
Dependent Claim
89 words
A GREASE-TYPE LUBRICANT COMPOSITION ESSENTIALLY OF AN OLEAGINOUS LUBRICANT VEHICLE SELECTED FROM THE GROUP CONSISTING OF A HYDROCARBON OIL, A SILCONE LUBRICATING OIL AND A SYNTHETIC ESTER LUBRICATING OIL AND FROM ABOUT 20 TO ABOUT 60 PERCENT BY WEIGHT OF COPOLYMER OF TETRAFLUOROETHYLENE AND HEXAFLUOROPROPYLENE SAID COPOLYMER HAVING A MELTING POINT FROM ABOUT 545 TO 565*F., A SPECIFIC HEAT OF .28 CAL/G/*C., A REFRACTIVE INDEX AT 475U OF ABOUT 1.344, A ROCKWELL HARDNESS OF R25 AND A WATER ABSORPTION OF .01%, AND SAID COPOLYMER HAVING THE FOLLOWING REPEATING UNIT:
References Cited (Backward Citations)
GB664546A
Cited
US3011975A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |