Athletic shoe with energy storing spring
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 21, 1989
Grant Date -
N/A
app pub date -
Sep 14, 1988
filing date -
Sep 14, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An athletic shoe includes a spring in the midsole of the shoe. The spring is generally oval-shaped and includes convex top and bottom walls and a laterally extending opening. The spring is molded from high tensile material such as graphite fibers and resin, kevlar fibers and resin, glass fibers and resin, or ceramic materials.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully