Granted Patent
Utility
US 6,089,832 · App. 09/198,629
Through-tubing, retrievable downhole pump system
Inventor:
John C. Patterson
Patented Case
View Patent ↗
Granted: Jul 18, 2000
Filed: Nov 24, 1998
Inventor
John C. Patterson
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.