Granted Patent
Utility
US 5,351,765 · App. 08/114,534
Coring assembly and method
Inventor:
Ronald D. Ormsby
Patented Case
View Patent ↗
Granted: Oct 4, 1994
Filed: Aug 31, 1993
Inventor
Ronald D. Ormsby
Assignee (at issue)
Baroid Technology, Inc.
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.