Granted Patent
Utility
US 5,997,196 · App. 09/215,541
Key structure of computer keyboard
Inventor:
Gino Hu
Patented Case
View Patent ↗
Granted: Dec 7, 1999
Filed: Dec 18, 1998
Inventor
Gino Hu
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.