Patent US2650245A successfully refreshed from Google Patents.
US2650245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthesis of acetic acid from co and methanol
Assignee: Acordis UK Ltd
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Filing: 1950-03-23
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Granted: 1953-08-25
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Expires: 1970-03-23
Abstract
No abstract record available.
Inventors
- 👤 Thomas Edward Boaden
- 👤 Alcock Edmund Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:31
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/10; C07C51/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
PROCESS FOR THE PRODUCTION OF FREE ACETIC ACID BY REACTION BETWEEN METHANOL AND CARBON MONOXIDE UNDER HIGH SUPERATMOSPHERIC PRESSURE, WHICH COMPRISES HEATING TOGETHER METHANOL, CARBON MONOXIDE AND HYDROGEN AND A PREFORMED MIXTURE OF HYDRATED AND UNHYDRATED NICKEL IODIDE, AT LEAST ONE MOLE OF HYDROGEN BEING PRESENT FOR EACH MOLE OF CARBON MONOXIDE, AND REPRESSING METHANE FORMATION BY MAINTAINING THE TEMPERATURE IN THE REACTION ZONE BELOW 200* C.
Claim 2
Dependent Claim
67 words
PROCESS FOR THE PRODUCTION OF FREE ACETIC ACID BY REACTION BETWEEN METHANOL AND CARBON MONOXIDE UNDER HIGH SUPERATMOSPHERIC PRESSURE, WHICH COMPRISES HEATING TOGETHER METHANOL, CARBON MONOXIDE AND HYDROGEN AND A PREFORMED MIXTURE OF HYDRATED AND UNHYDRATED NICKEL IODIDE, AT LEAST ONE MOLE OF HYDROGEN BEING PRESENT FOR EACH MOLE OF CARBON MONOXIDE, AND REPRESSING METHANE FORMATION BY MAINTAINING THE TEMPERATURE IN THE REACTION ZONE BELOW 200* C.
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) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |