Granted Patent
Utility
US 4,824,522 · App. 07/176,647
Fabrication of polydiacetylene waveguides
Inventors:
Gregory L. Baker, Cynthia F. Klausner
Patented Case
View Patent ↗
Granted: Apr 25, 1989
Filed: Apr 1, 1988
Inventors
Gregory L. Baker
Cynthia F. Klausner
Assignee (at issue)
Bell Communications Research, Inc.
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.