Granted Patent
Utility
US 5,432,872 · App. 08/183,523
Light energy broadening coupler
Inventors:
William J. Stewart, Jens Buus
Patented Case
View Patent ↗
Granted: Jul 11, 1995
Filed: Jan 19, 1994
Inventors
William J. Stewart
Jens Buus
Assignee (at issue)
GEC-Marconi Ltd.
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.