Granted Patent
Utility
US 6,009,219 · App. 08/835,217
Optical beam switching device
Inventor:
Walter M. Doyle
Patented Case
View Patent ↗
Granted: Dec 28, 1999
Filed: Apr 7, 1997
Inventor
Walter M. Doyle
Assignee (at issue)
Axiom Analytical, 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.