Granted Patent
Utility
US 6,733,393 · App. 10/108,747
Spider coupling
Inventor:
Eugeny Rivin
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: Mar 28, 2002
Inventor
Eugeny Rivin
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.