Granted Patent
Utility
US 6,442,955 · App. 09/861,551
Condensate overflow safety switch
Inventors:
Stuart Oakner, Mark Brannick, Donna Ellen Oakner Brannick
Patented Case
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Granted: Sep 3, 2002
Filed: May 22, 2001
Inventors
Stuart Oakner
Mark Brannick
Donna Ellen Oakner Brannick
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.