Granted Patent
Utility
US 4,638,266 · App. 06/669,489
Acoustooptical modulator and/or deflector
Inventors:
Wilfried Auch, Eberhard Schlemper
Patented Case
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Granted: Jan 20, 1987
Filed: Nov 7, 1984
Inventors
Wilfried Auch
Eberhard Schlemper
Assignee (at issue)
International Standard Electric Corporation
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.