Granted Patent
Utility
US 6,651,574 · App. 10/042,272
Spool valve
Inventors:
Mark Ellens, Jan Kuyper, Neal Wesley Denis Wood, Steven Winiski, Randall Mark
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Jan 11, 2002
Inventors
Mark Ellens
Jan Kuyper
Neal Wesley Denis Wood
Steven Winiski
Randall Mark
Assignee (at issue)
Teleflex Canada Limited Partnership
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.