Granted Patent
Utility
US 5,221,409 · App. 07/817,226
Apparatus for butt splicing ply stock
Inventors:
Mary Beth Hart, Richard B. Nash
Patented Case
View Patent ↗
Granted: Jun 22, 1993
Filed: Jan 6, 1992
Inventors
Mary Beth Hart
Richard B. Nash
Assignee (at issue)
THE GOODYEAR TIRE & RUBBER COMPANY
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.