Granted Patent
Utility
US 5,967,255 · App. 09/199,106
Step stool attachment
Inventor:
Daniel D. Young
Patented Case
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Granted: Oct 19, 1999
Filed: Nov 25, 1998
Inventor
Daniel D. Young
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.