Granted Patent
Utility
US 4,322,693 · App. 05/826,787
Ammonia laser with simultaneous transitions from substrates of different K-values
Inventor:
Stephen M. Fry
Patented Case
View Patent ↗
Granted: Mar 30, 1982
Filed: Aug 22, 1977
Inventor
Stephen M. Fry
Assignee (at issue)
Hughes Aircraft Company
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.