Granted Patent
Utility
US 5,408,549 · App. 08/193,853
Optical fiber wiring switching apparatus
Inventors:
Mitsuaki Tamura, Kazuhito Saito, Toru Yamanishi, Hideo Kobayashi
Patented Case
View Patent ↗
Granted: Apr 18, 1995
Filed: Feb 9, 1994
Inventors
Mitsuaki Tamura
Kazuhito Saito
Toru Yamanishi
Hideo Kobayashi
Assignees (at issue)
SUMITOMO ELECTRIC INDUSTRIES, LTD.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
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.