Granted Patent
Utility
US 5,593,949 · App. 08/251,211
High temperature conductor probes for determining liquid level of cryogens
Inventors:
Eddie M. Leung, Kenneth R. Dawson
Patented Case
View Patent ↗
Granted: Jan 14, 1997
Filed: May 31, 1994
Inventors
Eddie M. Leung
Kenneth R. Dawson
Assignee (at issue)
LOCKHEED MARTIN CORPORATION
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.