Granted Patent
Utility
US 4,383,652 · App. 06/255,412
Shredbar apparatus
Inventors:
Donald L. Osborne, Joe E. Shriver, John R. McClure
Patented Case
View Patent ↗
Granted: May 17, 1983
Filed: Apr 20, 1981
Inventors
Donald L. Osborne
Joe E. Shriver
John R. McClure
Assignee (at issue)
Sperry Corp.
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.