US3374073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidized, degraded interpolymer of ethylene and propylene and fuel composition containing the same
Assignee: Lubrizol Corp
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Filing: 1964-06-23
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Granted: 1968-03-19
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Expires: 1984-06-23
Abstract
No abstract record available.
Inventors
- 👤 William C Gergel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:36
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/16; C10L1/1625; C10L1/1633; C10L1/1641; C08; C08F; C08F8/00; C08F8/50; C08F2810/00; C08F2810/10; C10L1/1658; C10L1/18; C10L1/192; C10L1/195; F; F02; F02B; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A HYDROCARBON FUEL COMPOSITION COMPRISING A MAJOR PROPORTION OF A HYDROCARBON FUEL OIL AND FROM ABOUT 0.001 TO ABOUT 3% BY WEIGHT OF AN OZIDIZED, DEGRADED INTERPOLYMER OF PROPYLENE AND ETHYLENE PREPARED BY CONTACTING AN INTERPOLYMER OF PROPYLENE AND ETHYLENE HAVING A MOLECULAR WEIGHT OF FROM ABOUT 50,000 TO ABOUT 800,000 WITH AN OXYGEN CONTAINING GAS AT A TEMPERATURE OF AT LEAST 100*C. FOR A TIME SUFFICIENT TO REDUCE THE MOLECULAR WEIGHT TO A VALUE WITHI THE RANGE EXTENDING FROM ABOUT 3,000 TO ABOUT 5% LESS THAN THE MOLECULAR WEIGHT BEFORE DEGRADATION, SAID INTERPOLYMER COMPRISING FROM ABOUT 20 TO ABOUT 66 MOLE PERCENT PROPYLENE AND FROM ABOUT 33 TO ABOUT 80 MOLE PERCENT OF ETHYLENE.
Claim 2
Dependent Claim
115 words
A HYDROCARBON FUEL COMPOSITION COMPRISING A MAJOR PROPORTION OF A HYDROCARBON FUEL OIL AND FROM ABOUT 0.001 TO ABOUT 3% BY WEIGHT OF AN OZIDIZED, DEGRADED INTERPOLYMER OF PROPYLENE AND ETHYLENE PREPARED BY CONTACTING AN INTERPOLYMER OF PROPYLENE AND ETHYLENE HAVING A MOLECULAR WEIGHT OF FROM ABOUT 50,000 TO ABOUT 800,000 WITH AN OXYGEN CONTAINING GAS AT A TEMPERATURE OF AT LEAST 100*C. FOR A TIME SUFFICIENT TO REDUCE THE MOLECULAR WEIGHT TO A VALUE WITHI THE RANGE EXTENDING FROM ABOUT 3,000 TO ABOUT 5% LESS THAN THE MOLECULAR WEIGHT BEFORE DEGRADATION, SAID INTERPOLYMER COMPRISING FROM ABOUT 20 TO ABOUT 66 MOLE PERCENT PROPYLENE AND FROM ABOUT 33 TO ABOUT 80 MOLE PERCENT OF ETHYLENE.
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) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |