Granted Patent
Utility
US 5,315,880 · App. 07/928,710
Method for measuring fluid velocity by measuring the Doppler frequency shift or microwave signals
Inventor:
Michael R. Bailey
Patented Case
View Patent ↗
Granted: May 31, 1994
Filed: Aug 13, 1992
Inventor
Michael R. Bailey
Assignee (at issue)
Henry Filters, Inc.
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.