Granted Patent
Utility
US 4,448,479 · App. 06/321,475
Traveling wave, electrooptic devices with effective velocity matching
Inventor:
Rodney C. Alferness
Patented Case
View Patent ↗
Granted: May 15, 1984
Filed: Nov 16, 1981
Inventor
Rodney C. Alferness
Assignee (at issue)
Bell Telephone Laboratories, 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.