Granted Patent
Utility
US 5,519,570 · App. 08/330,066
Detachable keyboard
Inventor:
Stephen Chung
Patented Case
View Patent ↗
Granted: May 21, 1996
Filed: Oct 26, 1994
Inventor
Stephen Chung
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.