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. 02, 1988
Filed:
Jul. 30, 1987
Applicant:
Inventor:
Rodger J Pereyra, Cottage Grove, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B65D / ;
U.S. Cl.
CPC ...
2064842 ; 2065242 ; 206807 ;
Abstract
Tamper-indicating package comprising two webs, each of which comprises an outer layer of polymeric material and an inner layer of polymeric material. At least one of said inner layer or said outer layer of at least one of said webs bears a random pattern of markings. Upon access to the interior of the package, either the random pattern of markings will be altered or one or both of the polymeric layers will be damaged, thus indicating that the package has been subject to tampering.