Granted Patent
Utility
US 5,485,964 · App. 08/299,846
Method and apparatus for sorting plastic items
Inventors:
Hubert J. Booth, Paul H. Steagall, III, Michael Wright
Patented Case
View Patent ↗
Granted: Jan 23, 1996
Filed: Sep 1, 1994
Inventors
Hubert J. Booth
Paul H. Steagall, III
Michael Wright
Assignee (at issue)
Wellman 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.