Granted Patent
Utility
US 4,700,499 · App. 06/819,740
Muzzle-loading rifle
Inventor:
William A. Knight
Patented Case
View Patent ↗
Granted: Oct 20, 1987
Filed: Jan 21, 1986
Inventor
William A. Knight
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.