Granted Patent
Utility
US 4,480,413 · App. 06/368,420
Bladed centrifugal blasting wheel
Inventors:
Harold F. Schulte, Raymond M. Leliaert, Robert D. Rohr
Patented Case
View Patent ↗
Granted: Nov 6, 1984
Filed: Apr 14, 1982
Inventors
Harold F. Schulte
Raymond M. Leliaert
Robert D. Rohr
Assignee (at issue)
Wheelabrator-Frye 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.