Granted Patent
Utility
US 6,582,237 · App. 10/116,021
Rolling electrical transfer coupling improvements
Inventor:
Peter E. Jacobson
Patented Case
View Patent ↗
Granted: Jun 24, 2003
Filed: Apr 3, 2002
Inventor
Peter E. Jacobson
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.