Granted Patent
Utility
US 5,692,621 · App. 08/660,606
Sorting apparatus
Inventors:
Robert S. Davis, Herbert Fraenkel, Kenneth C. Henderson
Patented Case
View Patent ↗
Granted: Dec 2, 1997
Filed: Jun 6, 1996
Inventors
Robert S. Davis
Herbert Fraenkel
Kenneth C. Henderson
Assignee (at issue)
Sortex Limited
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.