Granted Patent
Utility
US 5,652,478 · App. 08/721,975
Gaseous discharge display
Inventors:
Tetsuo Sakai, Keiji Ishii, Mizumoto Ushirozawa, Yoshimichi Takano, Yukio Murakami, Yasushi Motoyama, Kazuo Takahashi
Patented Case
View Patent ↗
Granted: Jul 29, 1997
Filed: Sep 27, 1996
Inventors
Tetsuo Sakai
Keiji Ishii
Mizumoto Ushirozawa
Yoshimichi Takano
Yukio Murakami
Yasushi Motoyama
Kazuo Takahashi
Assignees (at issue)
Matsushita Electronics Corporation
NIPPON HOSO KYOKAI
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.