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:
Aug. 18, 1987
Filed:
Dec. 03, 1984
Applicant:
Inventors:
Pyong-Nae Son, Akron, OH (US);
Charles P Jacobs, Elyria, OH (US);
Assignee:
The B.F. Goodrich Company, Akron, OH (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
544384 ; 544231 ;
Abstract
Novel piperazinones having the formula ##STR1## are useful UV stabilizers and are purified by fractional distillation in the presence of an inorganic base.
Son, Pyong-Nae. (1987). Purification of 1-(2-amino-2-alkylpropyl)-3,3,5,5-tetraalkylpiperazinones (U.S. Patent No. 4687850). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4687850
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile