Granted Patent
Utility
US 5,900,535 · App. 08/781,820
Method and apparatus for ultrasonic measurement of fuel quantity and density
Inventor:
Steve Doe
Patented Case
View Patent ↗
Granted: May 4, 1999
Filed: Jan 10, 1997
Inventor
Steve Doe
Assignee (at issue)
Smiths Industries PLC
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.