Patents by Inventor Renato A. Lizardo

Renato A. Lizardo 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).

  • Method of manufacturing a multiple-pane insulating glass unit
    Patent number: 4335166
    Abstract: An insulating unit suitable for installation in walls, doors, and the like, is manufactured by a method that includes the steps of supporting a heat-shrinkable plastic film between spaced but parallel glass panes to provide an integral unit, and then heating the unit to cause the plastic film to shrink and become taut and wrinkle-free.
    Type: Grant
    Filed: May 11, 1981
    Date of Patent: June 15, 1982
    Assignee: Cardinal Insulated Glass Co.
    Inventors: Renato A. Lizardo, Roger D. O'Shaughnessy