Granted Patent
Utility
US 6,484,822 · App. 09/791,052
Cutting structure for earth boring drill bits
Inventors:
Dean Watson, Andrew Murdock, Steve Barton
Patented Case
View Patent ↗
Granted: Nov 26, 2002
Filed: Feb 22, 2001
Inventors
Dean Watson
Andrew Murdock
Steve Barton
Assignee (at issue)
Camco International (UK) 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.