Patents by Inventor Roy W. Carmichael

Roy W. Carmichael 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).

  • Cavity mounted door construction
    Patent number: 4769948
    Abstract: A track supports a sliding door for movement into and out of a cavity formed in a wall. The end region of the track within the door-receiving cavity rests on a supporting surface to which it is unattached. The door moves between jambs with lower ends provided with vertical slots which receive tongues which extend upwardly from the opposite sides of a horizontal plate attached to the floor.
    Type: Grant
    Filed: March 11, 1985
    Date of Patent: September 13, 1988
    Inventor: Roy W. Carmichael