Granted Patent
Utility
US 5,348,916 · App. 08/152,927
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Inventors:
Hideki Kushitani, Manabu Nishizawa, Yasumasa Nakao
Patented Case
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Granted: Sep 20, 1994
Filed: Nov 16, 1993
Inventors
Hideki Kushitani
Manabu Nishizawa
Yasumasa Nakao
Assignee (at issue)
ASAHI GLASS CO., LTD.
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.