Granted Patent
Utility
US 5,094,596 · App. 07/531,850
High pressure piston pump for fluent materials
Inventors:
Larry Erwin, James E. Cavanaugh, Robert D. Hetherington
Patented Case
View Patent ↗
Granted: Mar 10, 1992
Filed: Jun 1, 1990
Inventors
Larry Erwin
James E. Cavanaugh
Robert D. Hetherington
Assignee (at issue)
Binks Manufacturing Company
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.