Granted Patent
Utility
US 4,359,113 · App. 06/184,708
Earth boring bit with extended gage
Inventor:
Wilford V. Morris
Patented Case
View Patent ↗
Granted: Nov 16, 1982
Filed: Sep 8, 1980
Inventor
Wilford V. Morris
Assignee (at issue)
Hughes Tool Company 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.