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:
Jan. 15, 1991
Filed:
Jun. 15, 1989
Applicant:
Inventors:
Timothy H Walter, Wilmington, DE (US);
Thomas M Pontiff, Gansevoort, NY (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A43B / ; A43B / ;
U.S. Cl.
CPC ...
36 3 / ; 36114 ;
Abstract
A flexible innersole, or component thereof, for footwear of a foamed thermoplastic multi-block copolymer elastomer having a substantially uniform closed cell structure and having a specific gravity of less than about 0.35, an energy return ratio greater than about 0.55 when compressed and released said foam being prepared from a thermoplastic multi-block copolymer elastomer having a Shore D hardness of 25-45.