Granted Patent
Utility
US 5,346,521 · App. 07/683,963
Apparatus and method for fabricating optical fiber coupler
Inventor:
Song Lin
Patented Case
View Patent ↗
Granted: Sep 13, 1994
Filed: Apr 11, 1991
Inventor
Song Lin
Assignee (at issue)
Industrial Technology 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.