Granted Patent
Utility
US 4,514,945 · App. 06/276,469
Window insulating system
Inventors:
Robert J. Menchetti, Gale E. Sauer
Patented Case
View Patent ↗
Granted: May 7, 1985
Filed: Jun 23, 1981
Inventors
Robert J. Menchetti
Gale E. Sauer
Assignee (at issue)
Donn Incorporated
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.