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:
Apr. 07, 1987
Filed:
Mar. 08, 1985
Applicant:
Inventor:
Hans Dressler, Monroeville, PA (US);
Assignee:
Koppers Company, Inc., Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
558194 ; 524150 ;
Abstract
A group of phenolic phosphite compounds having the formula ##STR1## wherein R and R' may be the same or different and are tertiary alkyl groups containing from 4 to 12 carbon atoms. These compounds are disclosed to be useful as stabilizers and antioxidants in various organic materials.
Quick Actions:
Dressler, Hans. (1987). Tris-(3-hydroxy-4,6-di-t-alkylphenyl) phosphites (U.S. Patent No. 4656302). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4656302
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile