Patent US2555950A successfully refreshed from Google Patents.
US2555950A
Expired / Lapsed
US
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Preparation of 2-methoxy-1-alkanols and 2-methoxy-1-alkanals
Assignee: EIDP Inc
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Filing: 1949-06-23
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Granted: 1951-06-05
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Expires: 1969-06-23
Abstract
No abstract record available.
Inventors
- 👤 Joseph D C Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:23
CPC Classifications
C; C07; C07C; C07C47/00; C07C47/02; C07C47/198; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/13; C07C45/00; C07C45/49
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
50 words
A PROCESS WHICH COMPRISES REACTING 1,1-DIMETHOXYETHANE WITH CARBON MONOXIDE AND HYDROGEN AS THE SOLE REACTANTS AT A TEMPERATURE OF 150* TO 250* C. UNDER SUPERATMOSPHERIC PRESSURE OF FROM 800 TO 1500 ATMOSPHERES AND IN THE PRESENCE OF A COBALT HYDROGENATION CATALYST AS THE SOLE CATALYTIC AGENT, AND SEPARATING THEREFROM 2-METHOXY-1-PROPANAL.
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) | 1954-06-04 | 1954-12-04 | 1955-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-04 | 1958-12-04 | 1959-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-04 | 1962-12-04 | 1963-06-05 | $7700.00 | Window Closed / Lapsed |