Granted Patent
Utility
US 6,357,539 · App. 09/602,379
Apparatus for retrieving metal objects from a wellbore
Inventor:
David J. Ruttley
Patented Case
View Patent ↗
Granted: Mar 19, 2002
Filed: Jun 22, 2000
Inventor
David J. Ruttley
Assignee (at issue)
Rattler Tools, LLC
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.