Patent US2992275A successfully refreshed from Google Patents.
US2992275A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing oxygen-containing organic compounds
Assignee: Mitsubishi Chemical Corp
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Filing: 1957-11-21
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Granted: 1961-07-11
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Expires: 1977-11-21
Abstract
No abstract record available.
Inventors
- 👤 Niwa Makoto
- 👤 Kiknchi Yoshiaki
- 👤 Kamimura Shigeo
- 👤 Onishi Masaru
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:28
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/49; C07C45/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
THE PROCESS FOR PREPARING WATER-SOLUBLE OXYGENCONTAINING ORGANIC COMPOUNDS BY REACTING, IN THE PRESENCE OF A CATALYST, A LOWER OLEFIN WITH CARBON MONOXIDE AND HYDROGEN WHEREIN THE CATALYST IS A COBALT CARBONYL ANION COMPLEX SALT REPRESENTED BY THE GENERAL FORMULA:
Claim 2
Dependent Claim
39 words
THE PROCESS FOR PREPARING WATER-SOLUBLE OXYGENCONTAINING ORGANIC COMPOUNDS BY REACTING, IN THE PRESENCE OF A CATALYST, A LOWER OLEFIN WITH CARBON MONOXIDE AND HYDROGEN WHEREIN THE CATALYST IS A COBALT CARBONYL ANION COMPLEX SALT REPRESENTED BY THE GENERAL FORMULA:
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) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |