Granted Patent
Utility
US 6,253,642 · App. 09/158,610
Power tool
Inventor:
John K. Junkers
Patented Case
View Patent ↗
Granted: Jul 3, 2001
Filed: Sep 22, 1998
Inventor
John K. Junkers
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.