Granted Patent
Utility
US 4,507,193 · App. 06/637,885
Mechanism for recovering and collecting extracted polar liquids
Inventor:
Arthur S. King
Patented Case
View Patent ↗
Granted: Mar 26, 1985
Filed: Aug 6, 1984
Inventor
Arthur S. King
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.