US3075989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of acetyl-substituted
Assignee: —
•
Filing: —
•
Granted: 1963-01-29
•
Expires: 1980-01-29
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:25
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/44; C07D213/46; C07D213/50; C07D213/06; C07D213/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
46 words
A PROCESS FOR PRODUCING 2-METHYL-5-ACETYL PYRIDINE, CONSISTING ESSENTIALLY OF HEATING IN THE LIQUID PHASE, AT A TEMPERATURE OF FROM ABOUT 50* TO 250*C. 2-METHYL-5ETHYL PYRIDINE IN THE PRESENCE, IN THE PYRIDINE, OF AN ORGANIC PEROXISE CATALYST, AND STIRRING A STREAM OF MOLECULAR OXYGEN INTO THW MIXTURE.
Claim 2
Dependent Claim
46 words
A PROCESS FOR PRODUCING 2-METHYL-5-ACETYL PYRIDINE, CONSISTING ESSENTIALLY OF HEATING IN THE LIQUID PHASE, AT A TEMPERATURE OF FROM ABOUT 50* TO 250*C. 2-METHYL-5ETHYL PYRIDINE IN THE PRESENCE, IN THE PYRIDINE, OF AN ORGANIC PEROXISE CATALYST, AND STIRRING A STREAM OF MOLECULAR OXYGEN INTO THW MIXTURE.
Claim 3
Dependent Claim
50 words
A PROCESS OF RPRODUCING 2-METHYL-5-ACETYL PYRIDINE, CONSISTING ESSENTIALLY OF HEATING IN THE LIQUID PHASE, AT A TEMPERATURE OF FROM ABOUT 50* TO 250*C. 2-METHYL-5ETHYL PYRIDINE IN A SOLVENT WHICH IS OXIDISED UNDER THE CONDITIONS OF THE REACTION TO A HYDROPEROXIDE AND STIRRING A STREAM OF MOLECULAR OXYGEN INTO THE MIXTURE.
Claim 4
Dependent Claim
50 words
A PROCESS OF RPRODUCING 2-METHYL-5-ACETYL PYRIDINE, CONSISTING ESSENTIALLY OF HEATING IN THE LIQUID PHASE, AT A TEMPERATURE OF FROM ABOUT 50* TO 250*C. 2-METHYL-5ETHYL PYRIDINE IN A SOLVENT WHICH IS OXIDISED UNDER THE CONDITIONS OF THE REACTION TO A HYDROPEROXIDE AND STIRRING A STREAM OF MOLECULAR OXYGEN INTO THE MIXTURE.
References Cited (Backward Citations)
US2437938A
Cited
US2670352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |