Granted Patent
Utility
US 4,475,932 · App. 06/460,056
Gas-liquid vortex separator-eliminator
Inventors:
Robert Hull, Joseph A. Lane
Patented Case
View Patent ↗
Granted: Oct 9, 1984
Filed: Jan 21, 1983
Inventors
Robert Hull
Joseph A. Lane
Assignee (at issue)
Amtrol, 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.