Granted Patent
Utility
US 5,953,469 · App. 08/960,512
Optical device utilizing optical waveguides and mechanical light-switches
Inventor:
Xiaochuan Zhou
Patented Case
View Patent ↗
Granted: Sep 14, 1999
Filed: Oct 29, 1997
Inventor
Xiaochuan Zhou
Assignee (at issue)
Xeotron 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.