Granted Patent
Utility
US 6,322,229 · App. 09/439,846
Backlighting for computer keyboard
Inventors:
Sam E. J. Chan, King Sum Chu, W. Edward Church, Randall Krafft
Patented Case
View Patent ↗
Granted: Nov 27, 2001
Filed: Nov 12, 1999
Inventors
Sam E. J. Chan
King Sum Chu
W. Edward Church
Randall Krafft
Assignee (at issue)
Questech International, Inc.
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.