Granted Patent
Utility
US 5,871,589 · App. 08/790,676
Gun barrel and tube cleaning device
Inventor:
Bruce F. Hedge
Patented Case
View Patent ↗
Granted: Feb 16, 1999
Filed: Jan 28, 1997
Inventor
Bruce F. Hedge
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.