Granted Patent
Utility
US 5,221,846 · App. 07/798,787
Radiographic system with improved image quality
Inventors:
Bernard Allen Apple, Jacob Beutel, Bob McConnell, Daniel J. Mickewich, Raymond Joseph Russell
Patented Case
View Patent ↗
Granted: Jun 22, 1993
Filed: Nov 27, 1991
Inventors
Bernard Allen Apple
Jacob Beutel
Bob McConnell
Daniel J. Mickewich
Raymond Joseph Russell
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
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.