Granted Patent
Utility
US 6,435,459 · App. 09/429,351
LED wayside signal for a railway
Inventors:
John Richard Sanderson, Klaus Oesterheld, Rand J. Eikelberger
Patented Case
View Patent ↗
Granted: Aug 20, 2002
Filed: Oct 28, 1999
Inventors
John Richard Sanderson
Klaus Oesterheld
Rand J. Eikelberger
Assignee (at issue)
Dialight Corporation
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.