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. 25, 1983
Filed:
Jul. 25, 1980
Applicant:
Inventor:
Peter Petersen-Hoj, Espergarde, DK;
Assignee:
Tetra Pak Developpement SA, Pully-Lausanne, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264514 ; 264567 ; 264568 ;
Abstract
The present invention relates to a method and apparatus for the manufacture of oriented plastic film, in particular polyester film, by the inflation in two steps of an extruded seamless tube of plastic material. The present invention also relates to the laminate manufactured in accordance with the method.