Granted Patent
Utility
US 4,685,322 · App. 06/771,633
Method of forming a drawn and redrawn container body
Inventor:
Ernest J. Clowes
Patented Case
View Patent ↗
Granted: Aug 11, 1987
Filed: Sep 3, 1985
Inventor
Ernest J. Clowes
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.