Granted Patent
Utility
US 6,489,588 · App. 09/718,453
Method and apparatus for separating non-metallic materials
Inventors:
Brian Hoekstra, Roger Flannigan, Daniel Wegerif
Patented Case
View Patent ↗
Granted: Dec 3, 2002
Filed: Nov 22, 2000
Inventors
Brian Hoekstra
Roger Flannigan
Daniel Wegerif
Assignee (at issue)
Applied Photonicss, 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.