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:
Jan. 04, 1977
Filed:
Jul. 11, 1974
Applicant:
Inventors:
Assignee:
Kanebo, Ltd., Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
260 / ; 260 / ;
Abstract
Polyethylene terephthalates having high quality, particularly an improved color tone are produced by a direct esterification from particularly defined terephthalic acid and ethylene glycol.
Itabashi, Yoshio. (1977). Method of producing polyesters terephthalic acid and ethylene glycol (U.S. Patent No. 4001187). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4001187
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile