Granted Patent
Utility
US 4,790,169 · App. 07/152,672
Apparatus for doming can bottoms
Inventors:
Bert E. Johansson, Conrad M. Grims
Patented Case
View Patent ↗
Granted: Dec 13, 1988
Filed: Feb 5, 1988
Inventors
Bert E. Johansson
Conrad M. Grims
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.