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. 27, 1995
Filed:
Nov. 17, 1994
Applicant:
Inventors:
Assignee:
Cheil Synthetics Inc., Kyungsan, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; D03D / ;
U.S. Cl.
CPC ...
2642358 ; 2642902 ; 428330 ; 4286 / ; 428900 ; 428910 ;
Abstract
A method for the production of biaxially stretched polyester film. The method comprises the steps of: adding cubic calcium carbonate particles of calcite structure satisfying the following conditions at any stage of polyester preparation, so as to prepare polyester resin:
Son, Young. (1995). Method for the production of biaxially stretched polyester film for (U.S. Patent No. 5427730). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5427730
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