US3190922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low pressure hydrogenation of disubstituted amides of carboxylic acids to tertiary amines
Assignee: General Mills Inc
•
Filing: 1961-02-28
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Granted: 1965-06-22
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Expires: 1981-02-28
Abstract
No abstract record available.
Inventors
- 👤 Bard Ned M Le
- 👤 Leonard R Vertnik
- 👤 Fisher Ralph
- 👤 Kirtland E Mccaleb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:46
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/02; C07D295/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
IN THE PROCESS OF HYDROGENATING AMIDES PREPARED FROM CARBOXYLIC ACIDS TO FORM TERTIARY AMINES WHEREIN A REACTION MIXTURE COMPRISING HYDROGEN AND A N,N-DISUBSTITUTED AMIDE IS CONTACTED WITH A HYDROGENATION CATALYST AT A TEMPTERATURE OF ABOUT 200*C. TO 350*C. AND HYDROGENATING PRESSURES, THE IMPROVEMENT COMPRISING REMOVING A PORTION OF THE GASEOUS COMPONENT OF THE REACTION MIXTURE AND ADDING HYDROGEN TO THE REACTION MIXTURE.
Claim 2
Dependent Claim
62 words
IN THE PROCESS OF HYDROGENATING AMIDES PREPARED FROM CARBOXYLIC ACIDS TO FORM TERTIARY AMINES WHEREIN A REACTION MIXTURE COMPRISING HYDROGEN AND A N,N-DISUBSTITUTED AMIDE IS CONTACTED WITH A HYDROGENATION CATALYST AT A TEMPTERATURE OF ABOUT 200*C. TO 350*C. AND HYDROGENATING PRESSURES, THE IMPROVEMENT COMPRISING REMOVING A PORTION OF THE GASEOUS COMPONENT OF THE REACTION MIXTURE AND ADDING HYDROGEN TO THE REACTION MIXTURE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |