Granted Patent
Utility
US 5,726,440 · App. 08/553,875
Wavelength selective photodetector
Inventors:
Nader M. Kalkhoran, Fereydoon Namavar
Patented Case
View Patent ↗
Granted: Mar 10, 1998
Filed: Nov 6, 1995
Inventors
Nader M. Kalkhoran
Fereydoon Namavar
Assignee (at issue)
Spire, 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.