Granted Patent
Utility
US 6,138,838 · App. 09/086,902
Screen media and a screening passage therefore
Inventors:
Matthew R. Soik, Mark S. Lutz, Dennis G. Purton
Patented Case
View Patent ↗
Granted: Oct 31, 2000
Filed: May 29, 1998
Inventors
Matthew R. Soik
Mark S. Lutz
Dennis G. Purton
Assignee (at issue)
J & L Fiber Services, 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.