Granted Patent
Utility
US 4,372,143 · App. 06/195,742
Apparatus for forming a domed bottom in a can body
Inventors:
Karl Elert, John C. Westphal
Patented Case
View Patent ↗
Granted: Feb 8, 1983
Filed: Oct 10, 1980
Inventors
Karl Elert
John C. Westphal
Assignee (at issue)
Jos. Schlitz 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.