Granted Patent
Utility
US 5,339,962 · App. 07/777,718
Method and apparatus for sorting materials using electromagnetic sensing
Inventors:
Edward J. Sommer, Jr., Michael A. Kittel, James R. Peatman
Patented Case
View Patent ↗
Granted: Aug 23, 1994
Filed: Oct 21, 1991
Inventors
Edward J. Sommer, Jr.
Michael A. Kittel
James R. Peatman
Assignee (at issue)
National Recovery Technologies, LLC
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.