Granted Patent
Utility
US 4,976,131 · App. 07/510,622
Can body making apparatus
Inventors:
Conrad M. Grims, Bert E. Johansson, Roger A. Hahn
Patented Case
View Patent ↗
Granted: Dec 11, 1990
Filed: Apr 18, 1990
Inventors
Conrad M. Grims
Bert E. Johansson
Roger A. Hahn
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.