Granted Patent
Utility
US 5,649,686 · App. 08/708,778
Flush valve refill head for controlling flow during operating cycle
Inventor:
John R. Wilson
Patented Case
View Patent ↗
Granted: Jul 22, 1997
Filed: Sep 6, 1996
Inventor
John R. Wilson
Assignee (at issue)
Sloan Valve Company
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.