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:
Feb. 28, 1989
Filed:
Feb. 18, 1988
Applicant:
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528 89 ; 528104 ; 25218223 ; 25218227 ; 525480 ;
Abstract
Advanced epoxy resins are prepared from glycidyl ethers of bisphenols or biphenols in the presence of cycloalkyl triphenyl phosphonium catalysts.
Quick Actions:
Pham, Ha. (1989). Preparation of advanced epoxy resins from epoxy resins and dihydric (U.S. Patent No. 4808692). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4808692
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile