Granted Patent
Utility
US 4,602,745 · App. 06/686,102
Coverging/diverging orifice assembly for embodiment in a bowl mill
Inventors:
Theodore V. Maliszewski, David Kohler
Patented Case
View Patent ↗
Granted: Jul 29, 1986
Filed: Dec 24, 1984
Inventors
Theodore V. Maliszewski
David Kohler
Assignee (at issue)
Combustion Engineering, 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.