Granted Patent
Utility
US 6,585,440 · App. 09/891,467
Folding keyboard having key modules with asymmetrical connection points
Inventor:
Winky Lin
Patented Case
View Patent ↗
Granted: Jul 1, 2003
Filed: Jun 27, 2001
Inventor
Winky Lin
Assignee (at issue)
Silitek 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.