Granted Patent
Utility
US 6,727,447 · App. 10/171,612
Resistant integrated keypad and a method for making the same
Inventor:
Kari Hentunen
Patented Case
View Patent ↗
Granted: Apr 27, 2004
Filed: Jun 17, 2002
Inventor
Kari Hentunen
Assignee (at issue)
Nokia
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.