Granted Patent
Utility
US 6,817,813 · App. 10/055,327
Reversible cutter bit
Inventors:
Tammy Elaine Dollar, Robert William Yeager, Robert Glenn Hall
Patented Case
View Patent ↗
Granted: Nov 16, 2004
Filed: Jan 22, 2002
Inventors
Tammy Elaine Dollar
Robert William Yeager
Robert Glenn Hall
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.