Granted Patent
Utility
US 5,343,541 · App. 07/856,039
Optical bypass switch
Inventors:
William D. Uken, Akira Tomita
Patented Case
View Patent ↗
Granted: Aug 30, 1994
Filed: May 7, 1992
Inventors
William D. Uken
Akira Tomita
Assignee (at issue)
Raychem Limited
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.