Granted Patent
Utility
US 6,544,012 · App. 10/139,770
High pressure plunger pump housing and packing
Inventor:
George H. Blume
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: May 6, 2002
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.