Granted Patent
Utility
US 4,373,370 · App. 06/056,704
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Inventors:
Robert J. Allen, Edward W. Blake, Manjeshwar S. Rao, Kurt L. Hahn
Patented Case
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Granted: Feb 15, 1983
Filed: Jul 11, 1979
Inventors
Robert J. Allen
Edward W. Blake
Manjeshwar S. Rao
Kurt L. Hahn
Assignee (at issue)
American Can 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.