Granted Patent
Utility
US 4,580,771 · App. 06/649,966
Sheet transfer apparatus
Inventor:
W. Vernon Smith
Patented Case
View Patent ↗
Granted: Apr 8, 1986
Filed: Sep 12, 1984
Inventor
W. Vernon Smith
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.