Patent US3309181A successfully refreshed from Google Patents.
US3309181A
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US
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Transesterification product
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1964-04-13
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Granted: 1967-03-14
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Expires: 1984-04-13
Abstract
No abstract record available.
Inventors
- 👤 Berkowitz Leonard
- 👤 John E Engelhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:30
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/234; C10L1/236; C10L1/2366; C08; C08F; C08F8/00; C08F8/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A HYDROCARBON COMPOSITION OF IMPROVED POUR AND IMPROVED STABILITY COMPRISING A HYDROCARBON OIL BOILING IN THE RANGE FROM ABOUT 250 TO 750%. AND AN EFFECTIVE AMOUNT OF AN ADDITIVE WHICH IS A TRANSESTERIFICATION REACTION PRODUCT BETWEEN A COPOLYMER OF ETHYLENE AND A VINYL FATTY ACID ESTER, HAVING A MOLECULAR WEIGHT OF FROM 1,000--3,000 WITH A HYDROCARBON AMINO ACID.
Claim 2
Dependent Claim
58 words
A HYDROCARBON COMPOSITION OF IMPROVED POUR AND IMPROVED STABILITY COMPRISING A HYDROCARBON OIL BOILING IN THE RANGE FROM ABOUT 250 TO 750%. AND AN EFFECTIVE AMOUNT OF AN ADDITIVE WHICH IS A TRANSESTERIFICATION REACTION PRODUCT BETWEEN A COPOLYMER OF ETHYLENE AND A VINYL FATTY ACID ESTER, HAVING A MOLECULAR WEIGHT OF FROM 1,000--3,000 WITH A HYDROCARBON AMINO ACID.
References Cited (Backward Citations)
US3048479A
Cited
US3260745A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |