Granted Patent
Utility
US 6,562,239 · App. 10/135,148
Magnetic separation device
Inventors:
Jeffrey E. Foy, Eric Sweeney
Patented Case
View Patent ↗
Granted: May 13, 2003
Filed: Apr 30, 2002
Inventors
Jeffrey E. Foy
Eric Sweeney
Assignee (at issue)
Dexter Magnetic Technologies, 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.