Granted Patent
Utility
US 4,862,765 · App. 07/118,732
Creeper installation method and apparatus
Inventors:
David V. Schaefer, Richard J. Honeyager
Patented Case
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Granted: Sep 5, 1989
Filed: Nov 9, 1987
Inventors
David V. Schaefer
Richard J. Honeyager
Assignee (at issue)
J. T. Case 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.