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. 07, 1981
Filed:
Jul. 05, 1979
Richard W Jacobs, Eden Prairie, MN (US);
Bemis Company, Inc., Minneapolis, MN (US);
Abstract
A paper bag having an inner ply and an outer ply with lines of perforations in the outer ply defining a flap adapted to be pulled back to open the bag, the inner ply having a transverse line of perforations underneath the flap, the plies being releasably adhered together by pressure-sensitive adhesive forward of the inner ply line of weakness and permanently adhered together rearward of the inner ply line of weakness, whereby after the bag has been filled and closed, the bag may be opened by pulling back the flap to tear the inner ply open rearward of the inner ply line of weakness and re-closed by adhering the flap to the inner ply forward of the inner ply line of weakness.