Granted Patent
Utility
US 5,343,945 · App. 08/020,524
Downholde gas/oil separation systems for wells
Inventors:
Jean S. Weingarten, M. Jane Williamson, Jeffrey Harris
Patented Case
View Patent ↗
Granted: Sep 6, 1994
Filed: Feb 19, 1993
Inventors
Jean S. Weingarten
M. Jane Williamson
Jeffrey Harris
Assignee (at issue)
Atlantic Richfield Company
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.