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:
Dec. 17, 1996
Filed:
Feb. 24, 1994
Kurt W Vetter, Long Island, NY (US);
Uniflex, Inc., Westbury, NY (US);
Abstract
A tamper-resistance envelope formed of a thermoplastic resin comprises two opposing panels having respective bottom and side wall edges bonded together to form a pocket therebetween. The top of the pocket is open for inserting an item into the pocket. Each panel has an edge portion adjacent the opening. A bead of pressure-sensitive adhesive is applied along each of the edge portions, and the adhesive bead is heat-seal bonded to the thermoplastic edge portion. The edge portions are brought together to bring the adhesive beads into contact to close the opening. By heat-seal bonding the adhesive beads directly to the thermoplastic edge portions, the pressure sensitive adhesive is resistant to being open by supercooling.