Granted Patent
Utility
US 5,166,573 · App. 07/583,132
Ultrasonic contact transducer and array
Inventor:
Lewis F. Brown
Patented Case
View Patent ↗
Granted: Nov 24, 1992
Filed: Sep 17, 1990
Inventor
Lewis F. Brown
Assignee (at issue)
Atochem North America, 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.