Granted Patent
Utility
US 6,553,825 · App. 09/938,017
Torque swivel and method of using same
Inventor:
Anthony R. Boyd
Patented Case
View Patent ↗
Granted: Apr 29, 2003
Filed: Aug 23, 2001
Inventor
Anthony R. Boyd
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.