Granted Patent
Utility
US 4,700,853 · App. 06/691,077
Slackless railway coupler connection
Inventors:
Russell G. Altherr, John W. Kaim
Patented Case
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Granted: Oct 20, 1987
Filed: Jan 14, 1985
Inventors
Russell G. Altherr
John W. Kaim
Assignee (at issue)
AMSTED INDUSTRIES INCORPORATED
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.