Granted Patent
Utility
US 4,251,376 · App. 06/016,584
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Inventor:
Charles Larry Badino
Patented Case
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Granted: Feb 17, 1981
Filed: Mar 1, 1979
Inventor
Charles Larry Badino
Assignee (at issue)
Joy Manufacturing 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.