Granted Patent
Utility
US 5,603,487 · App. 08/363,932
Lock puller
Inventor:
Jean-Guy Couillard
Patented Case
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Granted: Feb 18, 1997
Filed: Dec 27, 1994
Inventor
Jean-Guy Couillard
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.