Granted Patent
Utility
US 6,415,913 · App. 08/819,234
Excited base conveyor system
Inventors:
Paul I. Sleppy, Harold E. Patterson
Patented Case
View Patent ↗
Granted: Jul 9, 2002
Filed: Mar 17, 1997
Inventors
Paul I. Sleppy
Harold E. Patterson
Assignee (at issue)
FMC 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.