Granted Patent
Utility
US 6,658,174 · App. 09/810,135
Push-pull thermo-optic switch
Inventor:
Christopher Doerr
Patented Case
View Patent ↗
Granted: Dec 2, 2003
Filed: Mar 16, 2001
Inventor
Christopher Doerr
Assignee (at issue)
LUCENT TECHNOLOGIES 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.