Patent US2549455A successfully refreshed from Google Patents.
US2549455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of esters from olefinic compounds, carbon monoxide, hydrogen and organic carboxylic acids
Assignee: EIDP Inc
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Filing: 1948-01-28
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Granted: 1951-04-17
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Expires: 1968-01-28
Abstract
No abstract record available.
Inventors
- 👤 William F Gresham
- 👤 Richard E Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:14
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/04; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
105 words
THE METHOD FOR PREPARING ESTERS WHILE SUPPRESSING THE FORMATION OF OXO COMPOUNDS FROM AN OLEFINIC REACTANT, CARBON MONOXIDE AND HYDROGEN, WHICH COMPRISES INTERACTING AN OLEFINIC COMPOUND SIMULTANEOUSLY WITH CARBON MONOXIDE, HYDROGEN AND AN ORGANIC CARBOXYLIC ACID, AND CONTINUING THE SAID INTERACTION IN THE PRESENCE OF A CATALYTIC QUANTITY OF AN ORGANIC CARBOXYLIC ACID SALT OF AN ELEMENT OF THE CLASS CONSISTING OF COBALT AND RUTHENIUM, AT A TEMPERATURE OF 140* TO 375* UNDER A PRESSURE IN EXCESS OF 300 ATMOSPHERESD UNTIL THE ESTER FORMED BY THE SAID INTERACTION IS PRODUCED AS THE CHIEF REACTION PRODUCT, AND THEREAFTER SEPARATING THE SAID ESTER FROM THE RESULTING MIXTURE.
Claim 2
Independent Claim
105 words
THE METHOD FOR PREPARING ESTERS WHILE SUPPRESSING THE FORMATION OF OXO COMPOUNDS FROM AN OLEFINIC REACTANT, CARBON MONOXIDE AND HYDROGEN, WHICH COMPRISES INTERACTING AN OLEFINIC COMPOUND SIMULTANEOUSLY WITH CARBON MONOXIDE, HYDROGEN AND AN ORGANIC CARBOXYLIC ACID, AND CONTINUING THE SAID INTERACTION IN THE PRESENCE OF A CATALYTIC QUANTITY OF AN ORGANIC CARBOXYLIC ACID SALT OF AN ELEMENT OF THE CLASS CONSISTING OF COBALT AND RUTHENIUM, AT A TEMPERATURE OF 140* TO 375* UNDER A PRESSURE IN EXCESS OF 300 ATMOSPHERESD UNTIL THE ESTER FORMED BY THE SAID INTERACTION IS PRODUCED AS THE CHIEF REACTION PRODUCT, AND THEREAFTER SEPARATING THE SAID ESTER FROM THE RESULTING MIXTURE.
Claim 3
Dependent Claim
6 words
THE ACETATE ESTERS OF THE FORMULA
Claim 4
Dependent Claim
6 words
THE ACETATE ESTERS OF THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |