Patents by Inventor Guillermo O. Martin

Guillermo O. Martin 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).

  • Locking mechanism for sliding doors or windows and method of installation
    Patent number: 4741186
    Abstract: A special locking device is provided for locking horizontally movable doors or windows of show cases by providing simple means that simultaneously move a pair of pins strategically located along track means to move through strategically located apertures to engage the inner vertical edges of a pair of said doors or windows supported in closely spaced vertical planes without penetrating said doors or windows when said doors occupy positions closing a rear opening in said show case. A low cost installation method is also described.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: May 3, 1988
    Inventor: Guillermo O. Martin