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:
May. 12, 1981
Filed:
Oct. 26, 1979
Applicant:
Inventor:
Raymond V Maroszek, Neenah, WI (US);
Assignee:
American Can Company, Greenwich, CT (US);
Primary Examiner:
Int. Cl.
CPC ...
B65D / ; B65D / ;
U.S. Cl.
CPC ...
229 33 ; 229 36 ; 229 / ;
Abstract
Unitary double cavity cartons, for example, of the type commonly referred to as clam shell cartons, are provided in which lines of weakness, adjacent the center hinge and positioned to form a hinge ridge or channel upon closing, permit the carton to open freely without buckling or tearing.