Granted Patent
Utility
US 6,772,641 · App. 10/253,540
Differential pressure transmitter with simplified structure and reduced edge effects
Inventors:
Civetta Massimo, Ballestriero Luca
Patented Case
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Granted: Aug 10, 2004
Filed: Sep 25, 2002
Inventors
Civetta Massimo
Ballestriero Luca
Assignee (at issue)
ABB Service S.R.L
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.