Granted Patent
Utility
US 4,591,098 · App. 06/518,821
Apparatus for producing aerated water
Inventor:
Ralph G. Ridenour
Patented Case
View Patent ↗
Granted: May 27, 1986
Filed: Aug 1, 1983
Inventor
Ralph G. Ridenour
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.