Granted Patent
Utility
US 5,631,413 · App. 08/610,813
Fluid holdup tool and flow meter for deviated wells
Inventors:
Allen R. Young, Lucio N. Tello, Thomas J. Blankinship
Patented Case
View Patent ↗
Granted: May 20, 1997
Filed: Mar 7, 1996
Inventors
Allen R. Young
Lucio N. Tello
Thomas J. Blankinship
Assignee (at issue)
Computalog USA 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.