US3175972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant composition and method
Assignee: —
•
Filing: —
•
Granted: 1965-03-30
•
Expires: 1982-03-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:13
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2203/00; C10M2203/10; C10M2205/00; C10M2205/02; C10M2205/022; C10M2205/14; C10M2205/22; C10M2207/00; C10M2207/10; C10M2207/16; C10M2211/00; C10M2211/06; C10M2211/08; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2223/00; C10M2223/08; C10M2223/12; C10M2225/00; C10M2225/04; C10N; C10N2010/00; C10N2010/04; C10N2010/08; C10N2010/10; C10N2010/14; C10N2010/16; C10N2040/00; C10N2040/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
AN IMPROVED FLUID LUBRICANT COMPRISING 50 TO 99.4 WEIGHT PERCENT OF A PARAFFINIC BASE OIL, 0.5 TO 45 WEIGHT PERCENT OF AN EXTREME PRESSURE ADDITIVE SELECTED FROM THE GROUP CONSISTING OF POLYVALENT METAL NAPHTHENATES, SULFURIZED HYDROCARBONS, CHLORINATED HYDROCARBONS AND MIXTURES THEREOF, AND 0.1 TO 5 WEIGHT PERCENT OF A NORMALLY OIL-INSOLUBLE FINELY DISPERSED SOLID COPOLYMER OF ETHYLENE AND A COPOLYMERIZABLE OLEFIN HAVING 3-8 CARBON ATOMS PER MOLECULE.
Claim 2
Dependent Claim
67 words
AN IMPROVED FLUID LUBRICANT COMPRISING 50 TO 99.4 WEIGHT PERCENT OF A PARAFFINIC BASE OIL, 0.5 TO 45 WEIGHT PERCENT OF AN EXTREME PRESSURE ADDITIVE SELECTED FROM THE GROUP CONSISTING OF POLYVALENT METAL NAPHTHENATES, SULFURIZED HYDROCARBONS, CHLORINATED HYDROCARBONS AND MIXTURES THEREOF, AND 0.1 TO 5 WEIGHT PERCENT OF A NORMALLY OIL-INSOLUBLE FINELY DISPERSED SOLID COPOLYMER OF ETHYLENE AND A COPOLYMERIZABLE OLEFIN HAVING 3-8 CARBON ATOMS PER MOLECULE.
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) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |