US3095375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extreme pressure lubricants containing highly oxidized waxes
Assignee: Texaco Inc
•
Filing: 1958-06-24
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Granted: 1963-06-25
•
Expires: 1978-06-24
Abstract
No abstract record available.
Inventors
- 👤 Herbert J Pitman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:55
CPC Classifications
C; C10; C10M; C10M5/00; C10M2201/00; C10M2201/02; C10M2201/06; C10M2201/062; C10M2201/063; C10M2201/10; C10M2201/102; C10M2201/105; C10M2201/14; C10M2205/00; C10M2205/16; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/22; C10M2215/225; C10M2215/227; C10M2215/24; C10M2215/26; C10M2219/00; C10M2219/02; C10M2219/024; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2050/00; C10N2050/10; C10N2060/00; C10N2060/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A LUBRICATING COMPOSITION COMPRISING A MINERAL LUBRICATING OIL IN MAJOR PROPORTION HAVING INCORPORATED THEREIN ABOUT 0.5-15 PERCENT BY WEIGHT OF A WAX OXIDATE HAVING A NEUTRALIZATION NUMBER OF ABOUT 150-550, A RATIO OF NEUTRALIZATION NUMBER TO SAPONIFICATION NUMBER OF AT LEAST 0.5, AND COMPRISING IN AT LEAST A MAJOR PROPORTION COMPOUNDS CONTAINING MORE THAN 3 CARBON ATOMS PER MOLECULE, OBTAINED BY REACTING A PARAFFIN WAX SEPARATED FROM A PARAFFINIC DISTILLATE PETROLEUM OIL WITH AIR AT A TEMPERATURE IN THE RANE OF 200*F.-400*F., UNDER A PRESSURE OF ABOUT 30-500 POUNDS PER SQUARE INCH GAUGE, AND WITH AN AIR FEED RATE OF 10-60 CUBIC FEET OF AIR PER HOUR PER POUND OF WAX CHARGE UNTIL AN OXIDIZED PRODUCT HAVING A NEUTRALIZATION NUMBER IN ABOUT THE RANGE 200-550 IS OBTAINED, SAID OXIDATE BEING PRESENT IN THE LUBRICATING COMPOSITION IN SUFFICIENT AMOUNT TO IMPART IMPROVED EXTREME PRESSURE PROPERTIES THERETO.
Claim 2
Dependent Claim
145 words
A LUBRICATING COMPOSITION COMPRISING A MINERAL LUBRICATING OIL IN MAJOR PROPORTION HAVING INCORPORATED THEREIN ABOUT 0.5-15 PERCENT BY WEIGHT OF A WAX OXIDATE HAVING A NEUTRALIZATION NUMBER OF ABOUT 150-550, A RATIO OF NEUTRALIZATION NUMBER TO SAPONIFICATION NUMBER OF AT LEAST 0.5, AND COMPRISING IN AT LEAST A MAJOR PROPORTION COMPOUNDS CONTAINING MORE THAN 3 CARBON ATOMS PER MOLECULE, OBTAINED BY REACTING A PARAFFIN WAX SEPARATED FROM A PARAFFINIC DISTILLATE PETROLEUM OIL WITH AIR AT A TEMPERATURE IN THE RANE OF 200*F.-400*F., UNDER A PRESSURE OF ABOUT 30-500 POUNDS PER SQUARE INCH GAUGE, AND WITH AN AIR FEED RATE OF 10-60 CUBIC FEET OF AIR PER HOUR PER POUND OF WAX CHARGE UNTIL AN OXIDIZED PRODUCT HAVING A NEUTRALIZATION NUMBER IN ABOUT THE RANGE 200-550 IS OBTAINED, SAID OXIDATE BEING PRESENT IN THE LUBRICATING COMPOSITION IN SUFFICIENT AMOUNT TO IMPART IMPROVED EXTREME PRESSURE PROPERTIES THERETO.
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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) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |