Granted Patent
Utility
US 5,337,781 · App. 08/088,817
Float operated fill valve
Inventor:
Dwight N. Johnson
Patented Case
View Patent ↗
Granted: Aug 16, 1994
Filed: Jul 8, 1993
Inventor
Dwight N. Johnson
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.