Granted Patent
Utility
US 5,623,978 · App. 08/688,692
Stump cutting double claw tooth structure
Inventor:
Lyle J. Clemenson
Patented Case
View Patent ↗
Granted: Apr 29, 1997
Filed: Jul 29, 1996
Inventor
Lyle J. Clemenson
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.