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:
Sep. 18, 1979
Filed:
Oct. 17, 1977
Applicant:
Inventor:
Lewis E Chumbley, Lake Jackson, TX (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528204 ; 528 98 ; 528104 ; 528106 ; 528196 ;
Abstract
A thermoplastic polycarbonate formed by reacting a carbonyl halide such as phosgene, a dihydric phenol, and a 2-methylepichlorohydrin residue-dihydric phenol prepolymer under polycarbonate forming conditions.
Chumbley, Lewis. (1979). Polycarbonates incorporating 2-methylepichlorohydrin (U.S. Patent No. 4168368). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4168368
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile