Patent US3136743A successfully refreshed from Google Patents.
US3136743A
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Process for preparing lubricant and distillate fuel additives
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1959-12-30
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Granted: 1964-06-09
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Expires: 1979-12-30
Abstract
No abstract record available.
Inventors
- 👤 Walter D Conway
- 👤 Gerald K Vick
- 👤 Hugh H Horowitz
- 👤 Jr William C Hollyday
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:34
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/192; C10L1/195; C10L1/196; C10L1/1966; C08; C08F; C08F218/00; C08F218/02; C08F218/04; C08F222/00; C08F222/10; C08F222/12; C08F222/14; C10L1/197; C10L1/1973; C10M; C10M145/00; C10M145/02; C10M145/10; C10M145/16; C10M2203/00; C10M2203/06; C10M2203/10; C10M2209/00; C10M2209/02; C10M2209/04; C10M2209/06; C10M2209/062; C10M2209/08; C10M2209/084; C10M2209/086; C10M2209/10; C10M2209/101; C10M2217/00; C10M2217/02; C10M2217/028; C10M2217/06; C10N; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
IN A PROCESS FOR PREPARING OIL-SOLUBLE COPOLYMERIC ADDITIVES FROM A MONOMER MIXTURE COMPRISING AT LEAST A MAJOR PROPORTION OF VINYL ESTER AND DIALKYL FUMARATES, THE IMPROVEMENT WHICH COMPRISES, MIXING 1.5 TO 5 MOLAR PROPORTIONS OF SAID VINYL ESTER PER MOLAR PROPORTION OF SAID FUMARATE, COPOLYMERIZING SAID VINYL ESTER AND SAID
Claim 2
Dependent Claim
50 words
IN A PROCESS FOR PREPARING OIL-SOLUBLE COPOLYMERIC ADDITIVES FROM A MONOMER MIXTURE COMPRISING AT LEAST A MAJOR PROPORTION OF VINYL ESTER AND DIALKYL FUMARATES, THE IMPROVEMENT WHICH COMPRISES, MIXING 1.5 TO 5 MOLAR PROPORTIONS OF SAID VINYL ESTER PER MOLAR PROPORTION OF SAID FUMARATE, COPOLYMERIZING SAID VINYL ESTER AND SAID
References Cited (Backward Citations)
US2721879A
Cited
US2825717A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |