Granted Patent
Utility
US 4,238,563 · App. 05/971,922
Radiographic image enhancement
Inventor:
Norman L. Weinberg
Patented Case
View Patent ↗
Granted: Dec 9, 1980
Filed: Dec 21, 1978
Inventor
Norman L. Weinberg
Assignee (at issue)
Minrad 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.