Granted Patent
Utility
US 4,173,313 · App. 05/818,795
Metal web handling method, apparatus and coil construct
Inventor:
John William Mitchell Rogers
Patented Case
View Patent ↗
Granted: Nov 6, 1979
Filed: Jul 25, 1977
Inventor
John William Mitchell Rogers
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.