Granted Patent
Utility
US 4,429,398 · App. 06/348,565
Twin waveguide laser
Inventors:
Peter P. Chenausky, Robert J. Mongeon, Erroll H. Drinkwater, Lanny Laughman
Patented Case
View Patent ↗
Granted: Jan 31, 1984
Filed: Feb 12, 1982
Inventors
Peter P. Chenausky
Robert J. Mongeon
Erroll H. Drinkwater
Lanny Laughman
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.