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:
Jul. 05, 1994
Filed:
Jun. 16, 1993
Applicant:
Inventors:
Barry W Lock, Washington, MO (US);
William J Scholl, St. Louis, MO (US);
Assignee:
Nine West Group, Inc., St. Louis, MO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A43B / ;
U.S. Cl.
CPC ...
36 3 / ; 36 3 / ;
Abstract
The present invention relates to a shoe having an improved unitary dual hardness dowel-lift with superior wear and non-slip characteristics. The dual hardness dowel-lift includes a hard polyurethane top portion and a soft polyurethane bottom portion. The bottom portion is cast onto the top portion. The bottom portion is a softer material which possesses a hardness lower than the top portion as measured by the Shore A Hardness test, and preferably is a thermoset polyurethane elastomer.