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. 19, 1978
Filed:
Dec. 27, 1976
Applicant:
Inventors:
Richard Bernhard Alderfer, Glastonbury, CT (US);
Gerald Harry Scheibner, Downers Grove, IL (US);
Assignee:
Union Carbide Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29D / ;
U.S. Cl.
CPC ...
425 / ; 264 95 ; 264209 ; 4253261 ; 425308 ; 425404 ; 425466 ;
Abstract
An apparatus and method for internally cooling extruded tubular film produced from film-forming polymers such as polyethylene, polypropylene and the like.