Patent US2609394A successfully refreshed from Google Patents.
US2609394A
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US
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Production of amines
Assignee: Imperial Chemical Industries Ltd
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Filing: 1949-12-08
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Granted: 1952-09-02
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Expires: 1969-12-08
Abstract
No abstract record available.
Inventors
- 👤 Davies Phineas
- 👤 Reynolds Peter William
- 👤 Coats Robert Reid
- 👤 Taylor Arthur William Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:36
CPC Classifications
C; C07; C07C; C07C211/00; C07C211/01; C07C211/02; C07C211/03; C07C209/00; C07C209/04; C07C209/14; C07C209/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A PROCESS FOR THE PRODUCTION OF AMINES WHICH COMPRISES PASSING AN ALIPHATIC MONO-ALCOHOL CONTAINING FROM 2 TO 9 CARBON ATOMS TOGETHER WITH AMMONIA AND HYDROGEN IN THE VAPOR PHASE AT A TEMPERATURE WITHIN THE RANGE 240-300* C. AND AT A PRESSURE OF FROM 10 TO 25 ATMOSPHERES GAUGE OVER AN ACTIVE FORAMINATE COPPER CATALYST TREATED WITH AN ALKALINE EARTH METAL BASIC COMPOUND.
Claim 2
Dependent Claim
62 words
A PROCESS FOR THE PRODUCTION OF AMINES WHICH COMPRISES PASSING AN ALIPHATIC MONO-ALCOHOL CONTAINING FROM 2 TO 9 CARBON ATOMS TOGETHER WITH AMMONIA AND HYDROGEN IN THE VAPOR PHASE AT A TEMPERATURE WITHIN THE RANGE 240-300* C. AND AT A PRESSURE OF FROM 10 TO 25 ATMOSPHERES GAUGE OVER AN ACTIVE FORAMINATE COPPER CATALYST TREATED WITH AN ALKALINE EARTH METAL BASIC COMPOUND.
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) | 1955-09-02 | 1956-03-03 | 1956-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-02 | 1960-03-03 | 1960-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-02 | 1964-03-03 | 1964-09-02 | $7700.00 | Window Closed / Lapsed |