Granted Patent
Utility
US 4,432,458 · App. 06/333,768
Electronic control system for monitoring and controlling the movement of an envelope through a mail sorting machine
Inventor:
Henry A. Daboub
Patented Case
View Patent ↗
Granted: Feb 21, 1984
Filed: Dec 23, 1981
Inventor
Henry A. Daboub
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.