US2606915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic process for preparing amides
Assignee: Individual
•
Filing: 1947-04-25
•
Granted: 1952-08-12
•
Expires: 1967-04-25
Abstract
No abstract record available.
Inventors
- 👤 Paul W Garbo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:55
CPC Classifications
C; C07; C07C; C07C233/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
THE CATALYTIC AMIDIZATION PROCESS WHICH COMPRISES REACTING A MONOCARBOXYLIC ACID COMPOUND OF A HYDROCARBON OF NOT LESS THAN 7 CARBON ATOMS, SAID HYDROCARBON BEING SELECTED FROM THE CLASS CONSISTING OF ALIPHATICS, AROMATICS AND NAPHTHENIICS, WITH UREA IN THE PRESENCE OF AN INORGANIC, OXYGEN-CONTAINING COMPOUND CONTAINING AN ELEMENT SELECTED FROM THE GROUPS V AND VI OF THE MENDELEEFF PERIODIC SYSTEM AND HAVING AN ATOMIC NUMBER BETWEEN 15 AND 92, INCLUSIVE, AS CATALYST, AND RECOVERING THUS PRODUCED AMIDE FROM THE RESULTING REACTION MASS.
Claim 2
Dependent Claim
81 words
THE CATALYTIC AMIDIZATION PROCESS WHICH COMPRISES REACTING A MONOCARBOXYLIC ACID COMPOUND OF A HYDROCARBON OF NOT LESS THAN 7 CARBON ATOMS, SAID HYDROCARBON BEING SELECTED FROM THE CLASS CONSISTING OF ALIPHATICS, AROMATICS AND NAPHTHENIICS, WITH UREA IN THE PRESENCE OF AN INORGANIC, OXYGEN-CONTAINING COMPOUND CONTAINING AN ELEMENT SELECTED FROM THE GROUPS V AND VI OF THE MENDELEEFF PERIODIC SYSTEM AND HAVING AN ATOMIC NUMBER BETWEEN 15 AND 92, INCLUSIVE, AS CATALYST, AND RECOVERING THUS PRODUCED AMIDE FROM THE RESULTING REACTION MASS.
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) | 1955-08-12 | 1956-02-11 | 1956-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-12 | 1960-02-11 | 1960-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-12 | 1964-02-11 | 1964-08-12 | $7700.00 | Window Closed / Lapsed |