Granted Patent
Utility
US 5,243,453 · App. 07/664,221
Anti-moisture structures for use with a liquid crystal display
Inventors:
Takuo Kawaguchi, Tetsuo Ishikawa, Yoshiaki Takeda, Kousuke Yamada
Patented Case
View Patent ↗
Granted: Sep 7, 1993
Filed: Mar 4, 1991
Inventors
Takuo Kawaguchi
Tetsuo Ishikawa
Yoshiaki Takeda
Kousuke Yamada
Assignee (at issue)
HITACHI, 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.