Granted Patent
Utility
US 6,714,140 · App. 09/767,439
Signal light for railroads or the like
Inventor:
Jesús María Eguiluz Fernandez
Patented Case
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Granted: Mar 30, 2004
Filed: Jan 23, 2001
Inventor
Jesús María Eguiluz Fernandez
Assignee (at issue)
CELAYA EMPARANZA Y GALDÓS, S. A. (CEGASA)
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.