Granted Patent
Utility
US 5,506,913 · App. 08/083,350
Method of recognizing an irradiation field
Inventors:
Michael Ibison, Pieter Vuylsteke
Patented Case
View Patent ↗
Granted: Apr 9, 1996
Filed: Jun 28, 1993
Inventors
Michael Ibison
Pieter Vuylsteke
Assignee (at issue)
Agfa-Gevaert NV
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.