Patents by Inventor Denis J. Crushell

Denis J. Crushell 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).

  • Holder for credit card dockets
    Patent number: D275690
    Type: Grant
    Filed: March 25, 1982
    Date of Patent: September 25, 1984
    Inventor: Denis J. Crushell