Granted Patent
Utility
US 4,317,662 · App. 06/197,900
Oil separator device
Inventor:
Sharon J. Hudson, Jr.
Patented Case
View Patent ↗
Granted: Mar 2, 1982
Filed: Oct 17, 1980
Inventor
Sharon J. Hudson, Jr.
Assignee (at issue)
Sharon Manufacturing Co., 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.