US2562393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of ketonic bodies
Assignee: Individual
•
Filing: 1950-02-09
•
Granted: 1951-07-31
•
Expires: 1970-02-09
Abstract
No abstract record available.
Inventors
- 👤 Reppe Walter
- 👤 Magin August
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:20
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/49
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A PROCESS FOR THE PRODUCTION OF KETONIC COMPOUNDS WHICH COMPRISES REACTING A COMPOUND CONTAINING AN ACETYLENIC LINKAGE WITH CARBON MONOXIDE AND WATER IN THE PRESENCE OF A CYANIDE OF A METAL CAPABLE OF FORMING METAL CARBONYLS AT FROM 60* C. TO 200* C. AND AT A TOTAL PRESSURE OF AT LEAST 10 ATMOSPHERES.
Claim 2
Dependent Claim
53 words
A PROCESS FOR THE PRODUCTION OF KETONIC COMPOUNDS WHICH COMPRISES REACTING A COMPOUND CONTAINING AN ACETYLENIC LINKAGE WITH CARBON MONOXIDE AND WATER IN THE PRESENCE OF A CYANIDE OF A METAL CAPABLE OF FORMING METAL CARBONYLS AT FROM 60* C. TO 200* C. AND AT A TOTAL PRESSURE OF AT LEAST 10 ATMOSPHERES.
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) | 1954-07-30 | 1955-01-29 | 1955-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-30 | 1959-01-29 | 1959-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-30 | 1963-01-29 | 1963-07-31 | $7700.00 | Window Closed / Lapsed |