Granted Patent
Utility
US 5,394,732 · App. 08/119,790
Method and apparatus for ultrasonic detection of air bubbles
Inventors:
David Johnson, Douglas P. Miller, Keith Manica, William M. Dormont, Christopher John Welsh, William R. Mandel
Patented Case
View Patent ↗
Granted: Mar 7, 1995
Filed: Sep 10, 1993
Inventors
David Johnson
Douglas P. Miller
Keith Manica
William M. Dormont
Christopher John Welsh
William R. Mandel
Assignee (at issue)
Cobe Laboratories, 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.