Granted Patent
Utility
US 5,509,792 · App. 08/394,890
Electromagnetically driven reciprocating pump with fluted piston
Inventors:
Paul Sullivan, Vernon R. Scott, Robert E. Smith, III
Patented Case
View Patent ↗
Granted: Apr 23, 1996
Filed: Feb 27, 1995
Inventors
Paul Sullivan
Vernon R. Scott
Robert E. Smith, III
Assignee (at issue)
PumpWorks, 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.