Granted Patent
Utility
US 5,069,658 · App. 07/346,448
Method and apparatus for making display boxes having windows
Inventor:
Francois Dupuy
Patented Case
View Patent ↗
Granted: Dec 3, 1991
Filed: May 1, 1989
Inventor
Francois Dupuy
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.