Granted Patent
Utility
US 4,807,233 · App. 07/138,899
Phase locked cusp-shaped dielectric ridge gas laser
Inventors:
Richard A. Hart, Leon A. Newman, John T. Kennedy
Patented Case
View Patent ↗
Granted: Feb 21, 1989
Filed: Dec 28, 1987
Inventors
Richard A. Hart
Leon A. Newman
John T. Kennedy
Assignee (at issue)
UNITED TECHNOLOGIES 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.