Granted Patent
Utility
US 4,998,797 · App. 07/563,771
Optical waveguide plug connection
Inventors:
Hubert van den Bergh, Georges Wagnieres
Patented Case
View Patent ↗
Granted: Mar 12, 1991
Filed: Aug 7, 1990
Inventors
Hubert van den Bergh
Georges Wagnieres
Assignee (at issue)
Ciba-Geigy
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.