Granted Patent
Utility
US 6,401,933 · App. 09/704,168
Displaceable eccentric for vibratory screen
Inventors:
Douglas Cohen, Mauricio Escobar
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Nov 1, 2000
Inventors
Douglas Cohen
Mauricio Escobar
Assignee (at issue)
Ohio Central Steel Company An Ohio Corporation
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.