US3630901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grease compositions
Assignee: United States Department of the Army
•
Filing: 1969-09-24
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Granted: 1971-12-28
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Expires: 1989-09-24
Abstract
Abstract STABLE GREASE COMPOSITIONS HAVING EXCELLENT EXTREME PRESSURE PROPERTIES, AMONG OTHER, THE GREASE CONSISTING OF ABOUT 66.5 TO 75.8 WEIGHT PERCENT PETROLEUM FLUIDS HAVING POUR POINTS RANGING BETWEEN - 7.0 TO 40.0*C. 0.5 WEIGHT PERCENT PHENYL-1-NAPHTYLAMINE, THE BALANCE BEING TETRAFLUOROETHYLENE POLYMER HAVING A MOLECULAR WEIGHT OF 10,000-50,000 A SOFTENING POINT OF 32.1*C. A PARTICLE SIZE LESS THAN 30 MICRONS IN DIAMETER, AND SUPPLIED AS A 7.5% SUPENSION IN TRICHLOROTRIFLUOROETHANE.
Inventors
- 👤 Joseph F Messina
- 👤 Henry Gisser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:07
CPC Classifications
C; C10; C10M; C10M5/00; C08; C08K; C08K5/00; C08K5/01; C10M2203/00; C10M2203/10; C10M2203/102; C10M2211/00; C10M2211/06; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10N; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |