Granted Patent
Utility
US 6,021,652 · App. 09/115,282
Flow-control valve with valve member position sensor
Inventor:
James M. Walker
Patented Case
View Patent ↗
Granted: Feb 8, 2000
Filed: Jul 14, 1998
Inventor
James M. Walker
Assignee (at issue)
Alliance Laundry Systems 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.