Granted Patent
Utility
US 4,497,370 · App. 06/407,514
Apparatus and method for recovery of liquid hydrocarbons from ground water
Inventor:
Michael K. Breslin
Patented Case
View Patent ↗
Granted: Feb 5, 1985
Filed: Aug 12, 1982
Inventor
Michael K. Breslin
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.