Granted Patent
Utility
US 6,215,420 · App. 09/466,103
Keyboard (I)
Inventors:
Robert G. Harrison, Daniel W. Knodle, Gary M. Bang
Patented Case
View Patent ↗
Granted: Apr 10, 2001
Filed: Dec 17, 1999
Inventors
Robert G. Harrison
Daniel W. Knodle
Gary M. Bang
Assignee (at issue)
Coach Master Int'l Corp.
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.