Patents by Inventor Levert Lyons

Levert Lyons has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Athletic shoe with compression indicators and replaceable spring cassette
    Patent number: 5513448
    Abstract: An athletic shoe (10) has a bottom sole (12) and a removable insole (16). The bottom sole (12) has two cavities (24) and (26) that are accessible from the interior (22) of the shoe. Respectively sized removably mounted cushioning cassettes (30) and (32) are removably mounted in the cavities (24) and (26). Each cassette is resiliently flexible and has spring elements (44) seated therein. Viscous fluid indicators (60) and (80) are also mounted on the shoe to determine the impact stresses and compression fit of the shoe on the foot.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: May 7, 1996
    Inventor: Levert Lyons