Patents by Inventor Anne M. Stewart

Anne M. Stewart 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).

  • Retractable brushes
    Patent number: 4574416
    Abstract: A retractable brush in which the bristles can be retracted inside the brush body or extended therefrom by means of a bristle mounting member which is reciprocable inside the brush body and is movable between a retracted or extended position by means of a positional support member. The bristle mounting member is held in a preferred position by a locking means which automatically engages the positional support member when the bristles are extended. The positional support member is disposed such that the brush can be held and is readily actuable by one hand.
    Type: Grant
    Filed: July 31, 1984
    Date of Patent: March 11, 1986
    Inventors: John W. Stewart, Anne M. Stewart