Granted Patent
Utility
US 5,125,496 · App. 07/682,844
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Inventors:
Manuel Aguirre-Gandara, Ignacio Teran-Flores
Patented Case
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Granted: Jun 30, 1992
Filed: Apr 4, 1991
Inventors
Manuel Aguirre-Gandara
Ignacio Teran-Flores
Assignee (at issue)
Vitro Tec Fideicomiso
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.