Granted Patent
Utility
US 5,629,993 · App. 08/520,702
Compact optical switch
Inventor:
John O. Smiley
Patented Case
View Patent ↗
Granted: May 13, 1997
Filed: Aug 29, 1995
Inventor
John O. Smiley
Assignee (at issue)
JDS Fitel Inc.
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.