Granted Patent
Utility
US 4,618,232 · App. 06/685,086
Desk top microform reader
Inventor:
Thomas R. Wells
Patented Case
View Patent ↗
Granted: Oct 21, 1986
Filed: Dec 21, 1984
Inventor
Thomas R. Wells
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.