Granted Patent
Utility
US 6,516,841 · App. 09/915,327
Tree felling and shaping apparatus
Inventor:
Lester Oilund
Patented Case
View Patent ↗
Granted: Feb 11, 2003
Filed: Jul 27, 2001
Inventor
Lester Oilund
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.