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:
Aug. 24, 1976
Filed:
Sep. 13, 1972
Applicant:
Inventors:
Kenneth Thompson, Waynesville, NC (US);
Richard C Ihde, Parma Heights, OH (US);
Assignee:
U.S. Plywood-Champion Papers Inc., Hamilton, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29B / ; B29F / ;
U.S. Cl.
CPC ...
156244 ; 156500 ; 229-31 ; 427256 ; 427288 ;
Abstract
A composite article suitable for forming liquid-containing paperboard cartons is made by laminating an extruded thermoplastic film to an elongated paperboard web. The film has thick and thin strips and the thick strips are laminated to the web over areas thereof which are to ultimately form the bottom portions of the cartons. Thermoplastic material is regulated within an extruder and after extrusion the film takes on a profile imparted by the regulation of the material within the extruder die.