Granted Patent
Utility
US 5,939,704 · App. 08/669,564
Radiation beam position sensor
Inventors:
Walter Perrie, Peter J. Modern
Patented Case
View Patent ↗
Granted: Aug 17, 1999
Filed: Nov 13, 1996
Inventors
Walter Perrie
Peter J. Modern
Assignee (at issue)
British Nuclear Fuels PLC
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.