Granted Patent
Utility
US 6,775,427 · App. 10/092,867
Laterally coupled wave guides
Inventor:
Gary A. Evans
Patented Case
View Patent ↗
Granted: Aug 10, 2004
Filed: Mar 7, 2002
Inventor
Gary A. Evans
Assignee (at issue)
PHOTODIGM 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.