Granted Patent
Utility
US 6,734,398 · App. 10/352,426
Bladder system for controlling the temperature of laboratory fume hoods and working surfaces
Inventor:
Michael D. Cecchi
Patented Case
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Granted: May 11, 2004
Filed: Jan 29, 2003
Inventor
Michael D. Cecchi
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.