Granted Patent
Utility
US 4,807,459 · App. 07/069,840
Redraw apparatus for a can body making apparatus
Inventors:
Conrad M. Grims, Bert E. Johansson
Patented Case
View Patent ↗
Granted: Feb 28, 1989
Filed: Jul 1, 1987
Inventors
Conrad M. Grims
Bert E. Johansson
Assignee (at issue)
Adolph Coors 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.