Granted Patent
Utility
US 6,560,247 · App. 09/993,027
Dual wavelength optical fiber laser
Inventors:
Do-Il Chang, Min Yong Jeon, Kyong Hon Kim
Patented Case
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Granted: May 6, 2003
Filed: Nov 5, 2001
Inventors
Do-Il Chang
Min Yong Jeon
Kyong Hon Kim
Assignee (at issue)
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
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.