Granted Patent
Utility
US 5,882,097 · App. 08/943,057
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Inventors:
Steven Frederick Kohagen, Fred Ritchie, Deonna Fritz
Patented Case
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Granted: Mar 16, 1999
Filed: Oct 2, 1997
Inventors
Steven Frederick Kohagen
Fred Ritchie
Deonna Fritz
Assignee (at issue)
WATERLOO INDUSTRIES, INC.
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.