Granted Patent
Utility
US 5,663,503 · App. 08/525,929
Invasive and non-invasive ultrasonic sensor with continuous and demand self-test
Inventors:
Naim Dam, Michael J. Marro
Patented Case
View Patent ↗
Granted: Sep 2, 1997
Filed: Sep 8, 1995
Inventors
Naim Dam
Michael J. Marro
Assignee (at issue)
Cosense, 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.