Granted Patent
Utility
US 4,956,843 · App. 07/418,856
Simultaneous generation of laser radiation at two different frequencies
Inventors:
Pedram Akhavan-Leilabady, Douglas W. Anthon
Patented Case
View Patent ↗
Granted: Sep 11, 1990
Filed: Oct 10, 1989
Inventors
Pedram Akhavan-Leilabady
Douglas W. Anthon
Assignee (at issue)
Amoco 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.