Granted Patent
Utility
US 5,528,872 · App. 08/510,252
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Inventor:
Martin J. Rotter
Patented Case
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Granted: Jun 25, 1996
Filed: Aug 2, 1995
Inventor
Martin J. Rotter
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.