Granted Patent
Utility
US 4,449,303 · App. 06/489,500
Sighting screw unit for and with archery bows
Inventor:
Marlow W. Larson
Patented Case
View Patent ↗
Granted: May 22, 1984
Filed: Apr 28, 1983
Inventor
Marlow W. Larson
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.