Granted Patent
Utility
US 5,278,695 · App. 07/771,522
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Inventors:
Rolin Gebelein, Ronald E. Grubman
Patented Case
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Granted: Jan 11, 1994
Filed: Oct 4, 1991
Inventors
Rolin Gebelein
Ronald E. Grubman
Assignee (at issue)
Blue Sky Research
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.