Granted Patent
Utility
US 5,950,840 · App. 09/002,542
Bar screen system with attached screens
Inventor:
Eduard J. Thoma
Patented Case
View Patent ↗
Granted: Sep 14, 1999
Filed: Jan 2, 1998
Inventor
Eduard J. Thoma
Assignee (at issue)
Beloit 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.