Patents by Inventor Robert F. Crozier

Robert F. Crozier 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).

  • Keyboard enclosure
    Patent number: 5080155
    Abstract: A bag-like envelope is sized to receive a keyboard. The envelope has a reclosable and resealable opening for receiving the keyboard and another sealable opening for the electrical cable from the keyboard. A transparent panel of the envelope overlies the keys on one face of the keyboard. Air is evacuated from the interior of the envelope to cause the transparent panel to be drawn down onto the keys on the keyboard.
    Type: Grant
    Filed: December 28, 1990
    Date of Patent: January 14, 1992
    Assignee: Hooleon Corporation
    Inventor: Robert F. Crozier