Granted Patent
Utility
US 4,489,897 · App. 06/471,309
Apparatus for shredding documents
Inventors:
Peter James Turner, Neal J. Morrissey
Patented Case
View Patent ↗
Granted: Dec 25, 1984
Filed: Mar 2, 1983
Inventors
Peter James Turner
Neal J. Morrissey
Assignee (at issue)
General Binding Corporation
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.