Patent US3065242A successfully refreshed from Google Patents.
US3065242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of acyl halides, carboxylic acids and lactones
Assignee: EIDP Inc
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Filing: 1960-02-23
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Granted: 1962-11-20
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Expires: 1980-02-23
Abstract
No abstract record available.
Inventors
- 👤 Alderson Thomas
- 👤 Engelhardt Vaughn Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:59
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/54; C07C51/10; C07C51/14; C07C51/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
IN THE PROCESS OF PREPARING ACYL HALIDES AND THEIR CORRESPONDING CARBOXYLIC ACIDS AND LACTONES, THE STEP WHICH COMPROSES REACTING, AT A TEMPERATURE OF FROM 50 TO 250*C. AND A PRESSURE OF 50 TO 3,000 ATMOSPHERES, AN OLEFIN SELECTED FROM THE GROUP CONSISTING OF MONO- AND DIENIC HYDROCARBONS OF UP TO 20 CARBON ATOMS AND WHOSE SOLE ALIPHATIC UNSATURATION IS 1-2 ETHYLENIC BONDS, WITH CARBON MONOXIDE AND A HYDROGEN HALIDE SELECTED FROM THE GROUP CONSISTING OF HYDROGEN BROMIDE AND HYDROGEN CHLORIDE IN THE PRESENCE OF AT LEAST 0.0001%, BY WEIGHT OF THE HYDROGEN HALIDE, OF A CATALYST WHICH CONSISTS ESSENTIALLY OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF CHELATES, HALIDES AND CARBONYLS OF GROUP VIII NOBLE METALS.
Claim 2
Dependent Claim
117 words
IN THE PROCESS OF PREPARING ACYL HALIDES AND THEIR CORRESPONDING CARBOXYLIC ACIDS AND LACTONES, THE STEP WHICH COMPROSES REACTING, AT A TEMPERATURE OF FROM 50 TO 250*C. AND A PRESSURE OF 50 TO 3,000 ATMOSPHERES, AN OLEFIN SELECTED FROM THE GROUP CONSISTING OF MONO- AND DIENIC HYDROCARBONS OF UP TO 20 CARBON ATOMS AND WHOSE SOLE ALIPHATIC UNSATURATION IS 1-2 ETHYLENIC BONDS, WITH CARBON MONOXIDE AND A HYDROGEN HALIDE SELECTED FROM THE GROUP CONSISTING OF HYDROGEN BROMIDE AND HYDROGEN CHLORIDE IN THE PRESENCE OF AT LEAST 0.0001%, BY WEIGHT OF THE HYDROGEN HALIDE, OF A CATALYST WHICH CONSISTS ESSENTIALLY OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF CHELATES, HALIDES AND CARBONYLS OF GROUP VIII NOBLE METALS.
References Cited (Backward Citations)
US2876254A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |