Granted Patent
Utility
US 4,599,888 · App. 06/558,979
Air bubble detector device
Inventors:
Arthur Hufton, David Gardner
Patented Case
View Patent ↗
Granted: Jul 15, 1986
Filed: Dec 7, 1983
Inventors
Arthur Hufton
David Gardner
Assignee (at issue)
Teledyne Industries, 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.