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:
Apr. 14, 1992
Filed:
Oct. 11, 1989
Applicant:
Inventor:
Gerald O Hustad, McFarland, WI (US);
Assignee:
Oscar Mayer Foods Corp., Madison, WI (US);
Primary Examiner:
Int. Cl.
CPC ...
B65D / ;
U.S. Cl.
CPC ...
206459 ; 206807 ; 383-5 ;
Abstract
A package is provided which incorporates a peel seal area or areas that provide readily detectable evidence that the package has been opened or tampered with. Message indicia are provided at the peel seal, and the appearance of the message indicia changes when the peel seal area, which has a contact clarity condition when sealed, is broken resulting in the onset of an opacity condition which thereby obscures message indicia and/or makes message indicia visible in order to inform a consumer or potential purchaser that the peel seal has been broken.