Granted Patent
Utility
US 4,270,975 · App. 06/097,659
Liquid-vapor separation device and method
Inventor:
Richard C. Bennett
Patented Case
View Patent ↗
Granted: Jun 2, 1981
Filed: Nov 27, 1979
Inventor
Richard C. Bennett
Assignee (at issue)
Whiting Corporation
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.