Granted Patent
Utility
US 6,386,375 · App. 09/758,333
Lubrication system for vibrating flat screens
Inventor:
Lawrence Olsen
Patented Case
View Patent ↗
Granted: May 14, 2002
Filed: Jan 10, 2001
Inventor
Lawrence Olsen
Assignee (at issue)
Johnson Crushers International, 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.