Patents by Inventor James L. Stefaniak

James L. Stefaniak 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).

  • Method of re-conditioning mat switches
    Patent number: 4131992
    Abstract: An existing worn out floor mat electric switch is reconditioned by cutting it on three sides, severing the electric cord in two places, removing the inner parts of the mat switch, drilling out the metallic portions of the line cord, cleaning the contactor plates, inserting and reconnecting a new line cord, supplying new contractor buttons and separator strips, and reassembling and resealing the mat.
    Type: Grant
    Filed: September 6, 1977
    Date of Patent: January 2, 1979
    Assignee: S & H Moonlight Design Industries, Inc.
    Inventor: James L. Stefaniak