Granted Patent
Utility
US 4,489,592 · App. 06/468,787
Density monitor and method
Inventors:
Ronald F. Pacanowski, Robert W. Sampson, Paul J. Kuchar
Patented Case
View Patent ↗
Granted: Dec 25, 1984
Filed: Feb 22, 1983
Inventors
Ronald F. Pacanowski
Robert W. Sampson
Paul J. Kuchar
Assignee (at issue)
UOP LLC
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.