Granted Patent
Utility
US 5,166,994 · App. 07/664,810
Low cost one by eight singlemode optical fiber coupler
Inventors:
David W. Stowe, Daniel R. Campbell, Jr.
Patented Case
View Patent ↗
Granted: Nov 24, 1992
Filed: Mar 5, 1991
Inventors
David W. Stowe
Daniel R. Campbell, Jr.
Assignee (at issue)
Aster 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.