Granted Patent
Utility
US 4,647,147 · App. 06/572,733
Fiber optic to integrated optical chip coupler
Inventors:
Joseph I. Pikulski, O. Glenn Ramer
Patented Case
View Patent ↗
Granted: Mar 3, 1987
Filed: Jan 20, 1984
Inventors
Joseph I. Pikulski
O. Glenn Ramer
Assignee (at issue)
Hughes Aircraft Company
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.