Granted Patent
Utility
US 4,579,652 · App. 06/546,443
Disk screen shaft assemblies and method of and means for manufacturing the same
Inventor:
Joseph B. Bielagus
Patented Case
View Patent ↗
Granted: Apr 1, 1986
Filed: Oct 28, 1983
Inventor
Joseph B. Bielagus
Assignee (at issue)
Beloit 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.