Granted Patent
Utility
US 5,111,683 · App. 07/566,499
Calibration method for a pulse response flowmeter
Inventor:
Andre Fond
Patented Case
View Patent ↗
Granted: May 12, 1992
Filed: Aug 13, 1990
Inventor
Andre Fond
Assignee (at issue)
Hospal Industrie
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.