Granted Patent
Utility
US 5,351,521 · App. 07/961,167
Measurement of gas and water content in oil
Inventor:
David J. Cracknell
Patented Case
View Patent ↗
Granted: Oct 4, 1994
Filed: Oct 16, 1992
Inventor
David J. Cracknell
Assignee (at issue)
GEC-Marconi Ltd.
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.