Granted Patent
Utility
US 4,411,145 · App. 06/340,561
Can-making method
Inventors:
Leon L. Lewis, Michael Murray
Patented Case
View Patent ↗
Granted: Oct 25, 1983
Filed: Jan 18, 1982
Inventors
Leon L. Lewis
Michael Murray
Assignee (at issue)
United States Steel Corporation
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.