Patents by Inventor Robert A. Evans

Robert A. Evans 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).

  • Hose coupling for upright vacuum cleaner
    Patent number: 4129920
    Abstract: In accordance with the present invention, there is provided an arrangement for attaching a suction hose to an enclosed bag type of upright vacuum cleaner for the purpose of above-the-floor cleaning.
    Type: Grant
    Filed: December 12, 1977
    Date of Patent: December 19, 1978
    Assignee: Consolidated Foods Corporation
    Inventors: Robert A. Evans, James W. Momberg