Isomerization of cyclohexanebis-(methylamine) stereoisomers
CA 1087635 A · Owner: Sun Tech, Inc. · Inventors: Butte, Walter A. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Lockwood Lane West Chester, Chester County, Commonwealth of Pennsylvania 19380 TITLE OF THE INVENTION: "ISOMERIZATION OF CYCLOHEXANEBIS- (METHYLAMINE) STEREOISOMERS", ABSTRACT OF THE DISCLOSURE A process for isomerizing cyclohexanebis(methylamine) by contacting it with an organometallic compound at a temperature of from about l00° to about 200°C.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted October 14, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 14, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.