Granted Patent
Utility
US 6,560,038 · App. 10/007,949
Light extraction from LEDs with light pipes
Inventors:
William A. Parkyn, David G. Pelka
Patented Case
View Patent ↗
Granted: May 6, 2003
Filed: Dec 10, 2001
Inventors
William A. Parkyn
David G. Pelka
Assignee (at issue)
Teledyne Lighting and Display Products, 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.