Granted Patent
Utility
US 4,328,962 · App. 06/218,274
Mail sorting machine
Inventor:
Roy Akers
Patented Case
View Patent ↗
Granted: May 11, 1982
Filed: Dec 19, 1980
Inventor
Roy Akers
Assignee (at issue)
Bell and Howell, LLC
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.