Granted Patent
Utility
US 5,219,067 · App. 07/830,734
Keyboard pad structure for electronic devices
Inventors:
David J. Lima, John G. Tang
Patented Case
View Patent ↗
Granted: Jun 15, 1993
Filed: Feb 4, 1992
Inventors
David J. Lima
John G. Tang
Assignee (at issue)
Trimble Navigation Limited
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.