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. 03, 1981
Filed:
Jun. 11, 1979
Applicant:
Inventors:
Aleck M Birks, Buffalo Grove, IL (US);
Michael I Haluk, Toronto, CA;
Edward M Rothenberg, Willowdale, CA;
Assignee:
Canadian Industries Limited, Montreal, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05C / ; B05C / ;
U.S. Cl.
CPC ...
425 68 ; 15624412 ; 264514 ; 264173 ; 425 / ; 425 95 ; 425104 ; 425147 ; 427173 ;
Abstract
A method and an apparatus for effecting in a continuous manner the three operations of extruding, biaxially stretching and surface coating a seamless tubing of thermoplastic resin such as polyethylene, polypropylene, polyethylene terephthalate, etc. The coating material in a molten state is applied to the tubing while a formative state and prior stretching. A coated film is obtained which is dimensionally stable and is useful for food packaging.
Birks, Aleck. (1981). Apparatus for coating thermoplastic film (U.S. Patent No. 4248576). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4248576
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile