Granted Patent
Utility
US 5,147,159 · App. 07/633,725
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Inventors:
Tony Lowe, Yefim Val
Patented Case
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Granted: Sep 15, 1992
Filed: Dec 24, 1990
Inventors
Tony Lowe
Yefim Val
Assignee (at issue)
GTE Valenite Corporation
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.