Patents by Inventor Gilbert L. Santroch

Gilbert L. Santroch 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).

  • Cold weather shoe
    Patent number: 3977093
    Abstract: A hollow heel is movably mounted in the heel area of the bottom of a shoe. A battery is mounted in the heel. Electric heating elements are mounted at the bottom of the shoe in the area of the sole thereof. A switch at the bottom of the shoe in the heel area thereof is operable by the heel of the foot of a wearer. A circuit at the bottom of the shoe electrically connects the battery, the heating elements and the switch in circuit whereby the heating elements are selectively energized by the battery via the switch.
    Type: Grant
    Filed: January 19, 1976
    Date of Patent: August 31, 1976
    Assignee: The Raymond Lee Organization, Inc.
    Inventor: Gilbert L. Santroch