Granted Patent
Utility
US 4,567,803 · App. 06/555,604
Safety saw chain
Inventor:
Roy Anderson
Patented Case
View Patent ↗
Granted: Feb 4, 1986
Filed: Nov 28, 1983
Inventor
Roy Anderson
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.