Granted Patent
Utility
US 5,016,463 · App. 07/548,951
Apparatus and method for forming can bottoms
Inventors:
Bert E. Johansson, Conrad M. Grims
Patented Case
View Patent ↗
Granted: May 21, 1991
Filed: Sep 4, 1990
Inventors
Bert E. Johansson
Conrad M. Grims
Assignee (at issue)
COORS BREWING 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.