Granted Patent
Utility
US 5,885,142 · App. 08/883,661
Device for cleaning a liquid crystal panel
Inventor:
Hitoshi Yoshida
Patented Case
View Patent ↗
Granted: Mar 23, 1999
Filed: Jun 27, 1997
Inventor
Hitoshi Yoshida
Assignee (at issue)
NEC CORPORATION
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.