Granted Patent
Utility
US 4,335,166 · App. 06/262,424
Method of manufacturing a multiple-pane insulating glass unit
Inventors:
Renato A. Lizardo, Roger O'Shaughnessy
Patented Case
View Patent ↗
Granted: Jun 15, 1982
Filed: May 11, 1981
Inventors
Renato A. Lizardo
Roger O'Shaughnessy
Assignee (at issue)
Cardinal Insulated Glass Co.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.