Granted Patent
Utility
US 4,957,362 · App. 07/404,847
Method and apparatus for electro-optical phase detection
Inventor:
Lauren M. Peterson
Patented Case
View Patent ↗
Granted: Sep 18, 1990
Filed: Sep 8, 1989
Inventor
Lauren M. Peterson
Assignee (at issue)
Environmental Research Institute
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.