Patents by Inventor John B. Keenan

John B. Keenan 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).

  • Patent number: 5112096
    Abstract: A retractable glare-reducing shield assembly comprises a sleeve defining an open-ended tubular passage and including a pair of overlapping side panels forming between them a chamber in which a glare-reducing shield is received. The shield has one end extending through a suitable opening of the chamber so that it can be made to move between an extracted position, where its major portion extends out of the chamber and a retracted position where its major portion lies in the chamber. Constraining arrangements allow the shield to be moved only between the extracted and retracted positions.
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: May 12, 1992
    Inventor: John B. Keenan