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:
Jun. 07, 1977
Filed:
Oct. 16, 1975
Applicant:
Inventor:
George R Ure, Charlotte, NC (US);
Assignee:
Fiber Industries, Inc., Charlotte, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ; C08G / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 2604 / ;
Abstract
Novel carboxylic acid salts of substituted quaternary ammonium bases and processes for the production of polyesters by direct esterification of a glycol and a dicarboxylic acid involving the additions of such salts to the esterification reaction.
Quick Actions:
Ure, George. (1977). Preparation of polyesters using salts of substituted quaternary ammonium (U.S. Patent No. 4028307). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4028307
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile