Granted Patent
Utility
US 4,861,165 · App. 06/898,475
Method of and means for hydrodynamic mixing
Inventors:
Borje Fredriksson, Jeffery L. Cahmberlin
Patented Case
View Patent ↗
Granted: Aug 29, 1989
Filed: Aug 20, 1986
Inventors
Borje Fredriksson
Jeffery L. Cahmberlin
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.