Granted Patent
Utility
US 6,485,220 · App. 09/833,817
Tool joint
Inventor:
Gil Hecht
Patented Case
View Patent ↗
Granted: Nov 26, 2002
Filed: Apr 13, 2001
Inventor
Gil Hecht
Assignee (at issue)
Iscar, Ltd.
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.