Granted Patent
Utility
US 6,647,806 · App. 09/616,521
Turbulence conditioner for use with transit time ultrasonic flowmeters
Inventors:
Herbert Estrada, Donald R. Augenstein
Patented Case
View Patent ↗
Granted: Nov 18, 2003
Filed: Jul 14, 2000
Inventors
Herbert Estrada
Donald R. Augenstein
Assignee (at issue)
Caldon, 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.