Granted Patent
Utility
US 4,408,721 · App. 06/237,532
Fitting to combine air and pressurized water
Inventors:
Carlos Cohen, Alfred Raab
Patented Case
View Patent ↗
Granted: Oct 11, 1983
Filed: Feb 23, 1981
Inventors
Carlos Cohen
Alfred Raab
Assignee (at issue)
Jacuzzi Inc.
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.