Granted Patent
Utility
US 5,868,259 · App. 08/854,028
Overhead drive bar screen
Inventor:
Joseph B. Bielagus
Patented Case
View Patent ↗
Granted: Feb 9, 1999
Filed: May 9, 1997
Inventor
Joseph B. Bielagus
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.