Granted Patent
Utility
US 5,656,893 · App. 08/428,575
Gas discharge display apparatus
Inventors:
Taichi Shino, Takio Okamoto, Kazunori Hirao, Koichi Itsuda, Yukiharu Ito, Takao Wakitani, Toru Hirayama
Patented Case
View Patent ↗
Granted: Aug 12, 1997
Filed: Apr 25, 1995
Inventors
Taichi Shino
Takio Okamoto
Kazunori Hirao
Koichi Itsuda
Yukiharu Ito
Takao Wakitani
Toru Hirayama
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, 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.