Patents by Inventor Henry K. Zephir

Henry K. Zephir 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).

  • Towing rod
    Patent number: D253697
    Type: Grant
    Filed: July 19, 1977
    Date of Patent: December 18, 1979
    Inventor: Henry K. Zephir
  • Alarm system tester
    Patent number: D256566
    Type: Grant
    Filed: July 27, 1978
    Date of Patent: August 26, 1980
    Inventors: Henry K. Zephir, Winthrop E. Wilson