Granted Patent
Utility
US 6,050,341 · App. 08/988,532
Downhole running tool
Inventor:
Paul David Metcalf
Patented Case
View Patent ↗
Granted: Apr 18, 2000
Filed: Dec 10, 1997
Inventor
Paul David Metcalf
Assignee (at issue)
Petroline Wellsystems Limited
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.