Granted Patent
Utility
US 4,947,667 · App. 07/472,020
Method and apparatus for reforming a container
Inventors:
Ronald W. Gunkel, Robert A. Cargnel, James R. Morran, Edward P. Patrick
Patented Case
View Patent ↗
Granted: Aug 14, 1990
Filed: Jan 30, 1990
Inventors
Ronald W. Gunkel
Robert A. Cargnel
James R. Morran
Edward P. Patrick
Assignee (at issue)
Aluminum Company of America
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.