Granted Patent
Utility
US 5,934,173 · App. 08/909,015
Reciprocating plunger pump
Inventors:
Edward P. Murphy, Frank L. Amyotte
Patented Case
View Patent ↗
Granted: Aug 10, 1999
Filed: Aug 8, 1997
Inventors
Edward P. Murphy
Frank L. Amyotte
Assignee (at issue)
Hypro, 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.