Granted Patent
Utility
US 4,845,769 · App. 06/819,655
Annular x-ray inspection system
Inventors:
Paul Burstein, Allen S. Krieger
Patented Case
View Patent ↗
Granted: Jul 4, 1989
Filed: Jan 17, 1986
Inventors
Paul Burstein
Allen S. Krieger
Assignee (at issue)
American Science and Engineering, 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.