Granted Patent
Utility
US 5,314,731 · App. 07/883,391
Surface-treated substrate
Inventors:
Takashige Yoneda, Tsuneo Wakabayashi, Yukiko Takano
Patented Case
View Patent ↗
Granted: May 24, 1994
Filed: May 15, 1992
Inventors
Takashige Yoneda
Tsuneo Wakabayashi
Yukiko Takano
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.