Granted Patent
Utility
US 5,677,976 · App. 08/618,206
Optical attenuation fiber assembly
Inventor:
Mitsuo Takahashi
Patented Case
View Patent ↗
Granted: Oct 14, 1997
Filed: Mar 19, 1996
Inventor
Mitsuo Takahashi
Assignee (at issue)
SEIKOH GIKEN CO., LTD.
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.