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. 18, 1992
Filed:
May. 13, 1991
Applicant:
Inventors:
Douglas P Gundlach, Midland, MI (US);
Michael J Banco, Midland, MI (US);
Larry R Erickson, Midland, MI (US);
Marvin J Kreh, Chapin, SC (US);
William A Kirksey, Midland, MI (US);
William E LeBoeuf, Midland, MI (US);
Kevin J Wagers, Midland, MI (US);
John O McCree, Saginaw, MI (US);
Brian C Dais, Midland, MI (US);
Jose Porchia, Midland, MI (US);
Assignee:
Dowbrands L.P., Indianapolis, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A44B / ; B65D / ;
U.S. Cl.
CPC ...
24587 ; 24403 ; 383 63 ;
Abstract
A zipper closure for a reclosable thermoplastic bag includes two opposing interlockable rib and groove profiles, wherein at least a part of one or both of the profiles is divided into segments of materials having different elastic moduli. The zipper provides an audibly and/or tactilely perceptible indication of proper interlocking of the profiles.