US3098100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of diisopropyl ketone
Assignee: Union Carbide Corp
•
Filing: 1960-04-28
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Granted: 1963-07-16
•
Expires: 1980-04-28
Abstract
No abstract record available.
Inventors
- 👤 Benjamin T Freure
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:35
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/04; B; B01; B01J; B01J27/00; B01J27/14; B01J27/16; B01J27/18; B01J27/1802; B01J27/1808; C07C45/00; C07C45/51; C07C45/511; C07C45/512; C07C45/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
THE PROCESS FOR THE PRODUCTION OF DIISOPROPYL KETONE WHICH COMPRISES CONTACTING 2,2,4-TRIMETHYL-1,3-PENTANEDIOL IN THE VAPOR PHASE WITH CADMIUM PHOSPHATE AT A TEMPERATURE OF FROM 250-400* C. AND RECOVERING THE KETONE FORMED.
Claim 2
Dependent Claim
31 words
THE PROCESS FOR THE PRODUCTION OF DIISOPROPYL KETONE WHICH COMPRISES CONTACTING 2,2,4-TRIMETHYL-1,3-PENTANEDIOL IN THE VAPOR PHASE WITH CADMIUM PHOSPHATE AT A TEMPERATURE OF FROM 250-400* C. AND RECOVERING THE KETONE FORMED.
References Cited (Backward Citations)
US1813953A
Cited
US2042224A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |