Granted Patent
Utility
US 4,444,388 · App. 06/303,298
Stacking methods and apparatus
Inventors:
Rafn Stefannson, Raymond M. McManaman
Patented Case
View Patent ↗
Granted: Apr 24, 1984
Filed: Sep 15, 1981
Inventors
Rafn Stefannson
Raymond M. McManaman
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.