Patents by Inventor Serge Dextrase

Serge Dextrase 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).

  • Protective rim configuration for hard-shelled safety helmet
    Patent number: 4996724
    Abstract: A hard shelled safety helmet comprises a protective rim configuration for the helmet and a shock absorbent liner therefor. The rim extends within a groove formed in the liner.
    Type: Grant
    Filed: October 20, 1989
    Date of Patent: March 5, 1991
    Assignee: Innova-Dex Sports, Inc.
    Inventor: Serge Dextrase