Granted Patent
Utility
US 6,767,104 · App. 10/184,753
Backlightable knob, which has indicator bonded intimately to light pipe, and method of making same
Inventor:
James Worrell
Patented Case
View Patent ↗
Granted: Jul 27, 2004
Filed: Jun 28, 2002
Inventor
James Worrell
Assignee (at issue)
K I Industries, 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.