Granted Patent
Utility
US 5,602,333 · App. 08/261,844
Apparatus for measuring the level of a liquid in a tank
Inventors:
David A. Larrabee, John S. Wyler, Farid Ahmad
Patented Case
View Patent ↗
Granted: Feb 11, 1997
Filed: Jun 17, 1994
Inventors
David A. Larrabee
John S. Wyler
Farid Ahmad
Assignee (at issue)
Smiths Industries
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.