Patents by Inventor James M. Ward, deceased

James M. Ward, deceased 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).

  • Plexiglas speakers
    Patent number: 3967065
    Abstract: A novel speaker unit for incorporating into a high fidelity and sound system, the speaker unit consisting of a cabinet made of plexiglas, the plexiglas cabinet enclosing tweeter, midrange and woofer speakers, and the cabinet also carrying a crossover network with a volume knob and also carrying a female phono plugged as input connection.
    Type: Grant
    Filed: July 21, 1975
    Date of Patent: June 29, 1976
    Assignee: Sandra Ward
    Inventor: James M. Ward, deceased