Granted Patent
Utility
US 6,382,940 · App. 09/618,693
High pressure plunger pump housing and packing
Inventor:
George H. Blume
Patented Case
View Patent ↗
Granted: May 7, 2002
Filed: Jul 18, 2000
Inventor
George H. Blume
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.