Granted Patent
Utility
US 6,422,093 · App. 09/754,727
Burst mode ultrasonic flow sensor
Inventor:
Murray F. Feller
Patented Case
View Patent ↗
Granted: Jul 23, 2002
Filed: Jan 4, 2001
Inventor
Murray F. Feller
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.