Granted Patent
Utility
US 4,709,372 · App. 06/811,593
Fast axial flow laser circulating system
Inventors:
Joseph F. Rando, Dale E. Koop
Patented Case
View Patent ↗
Granted: Nov 24, 1987
Filed: Dec 19, 1985
Inventors
Joseph F. Rando
Dale E. Koop
Assignee (at issue)
Spectra-Physics, 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.