Granted Patent
Utility
US 4,253,853 · App. 06/085,345
Contactor and entrainment separator
Inventor:
Michael B. Caesar
Patented Case
View Patent ↗
Granted: Mar 3, 1981
Filed: Oct 16, 1979
Inventor
Michael B. Caesar
Assignee (at issue)
Occidental Research 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.