US2587858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of oxygenated compounds
Assignee: Shell Development Co
•
Filing: 1948-05-01
•
Granted: 1952-03-04
•
Expires: 1968-05-01
Abstract
No abstract record available.
Inventors
- 👤 Aloysius I M Keulemans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:58
CPC Classifications
C; C07; C07C; C07C27/00; C07C27/20; C07C27/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
IN THE SYNTHESIS OF AN OXYGENATED COMPOUND BY THE CARBONYLATION OF AN OLEFIN WITH CARBON MONOXIDE AND HYDROGEN WHEREIN THE CARBONYLATION IS CARRIED OUT IN A CARBONYLATION REACTOR WITH A FIXED BED OF COBALT CATALYST, THE IMPROVEMENT WHICH COMPRISES CONTINUOUSLY SUPPLYING COBALT TO THE CARBONYLATION REACTOR IN THE FORM OF COBALT HYDROCARBONYL.
Claim 2
Dependent Claim
52 words
IN THE SYNTHESIS OF AN OXYGENATED COMPOUND BY THE CARBONYLATION OF AN OLEFIN WITH CARBON MONOXIDE AND HYDROGEN WHEREIN THE CARBONYLATION IS CARRIED OUT IN A CARBONYLATION REACTOR WITH A FIXED BED OF COBALT CATALYST, THE IMPROVEMENT WHICH COMPRISES CONTINUOUSLY SUPPLYING COBALT TO THE CARBONYLATION REACTOR IN THE FORM OF COBALT HYDROCARBONYL.
References Cited (Backward Citations)
US2327066A
Cited
US2464916A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-04 | 1955-09-03 | 1956-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-04 | 1959-09-03 | 1960-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-04 | 1963-09-03 | 1964-03-04 | $7700.00 | Window Closed / Lapsed |