Granted Patent
Utility
US 5,620,363 · App. 08/281,851
Powered grinding tool
Inventor:
Paul Steabben Hepworth
Patented Case
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Granted: Apr 15, 1997
Filed: Jul 20, 1994
Inventor
Paul Steabben Hepworth
Assignee (at issue)
Turner Intellectual Property Limited
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.