The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 1977
Filed:
Sep. 20, 1976
Applicant:
Inventor:
Reinhard H Richter, North Haven, CT (US);
Assignee:
The Upjohn Company, Kalamazoo, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2605 / ;
Abstract
The trans-trans-isomer content of a mixture of stereoisomers of di-(p-aminocyclohexyl)methane is enriched by treating the latter mixture, optionally in solution in an organic solvent, with the trans,trans-isomer of a bisbenzaldimine of di-(p-aminocyclohexyl)methane.
Richter, Reinhard. (1977). Novel process (U.S. Patent No. 4026943). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4026943
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile