Granted Patent
Utility
US 4,241,909 · App. 05/926,729
Document stacking apparatus
Inventors:
Gary J. Murphy, George Norris
Patented Case
View Patent ↗
Granted: Dec 30, 1980
Filed: Jul 21, 1978
Inventors
Gary J. Murphy
George Norris
Assignee (at issue)
Input Business Machines, Inc.
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.