Granted Patent
Utility
US 6,655,241 · App. 10/045,423
Anti-skip fastener tightening and/or extraction device
Inventor:
Burton Kozak
Patented Case
View Patent ↗
Granted: Dec 2, 2003
Filed: Jan 12, 2002
Inventor
Burton Kozak
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.