Granted Patent
Utility
US 6,525,677 · App. 09/649,699
Method and apparatus for an optical laser keypad
Inventor:
George A. Printzis
Patented Case
View Patent ↗
Granted: Feb 25, 2003
Filed: Aug 28, 2000
Inventor
George A. Printzis
Assignee (at issue)
Motorola, 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.