Granted Patent
Utility
US 6,608,721 · App. 09/687,029
Optical tapped delay line
Inventors:
Terry M. Turpin, Fred Froehlich, D. Bruce Nichols
Patented Case
View Patent ↗
Granted: Aug 19, 2003
Filed: Oct 13, 2000
Inventors
Terry M. Turpin
Fred Froehlich
D. Bruce Nichols
Assignee (at issue)
Essex Group LLC
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.