Granted Patent
Utility
US 5,653,079 · App. 08/576,361
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Inventors:
William F. Loeffler, A. Norris Breivik
Patented Case
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Granted: Aug 5, 1997
Filed: Dec 21, 1995
Inventors
William F. Loeffler
A. Norris Breivik
Assignee (at issue)
United Steel Products 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.