Granted Patent
Utility
US 4,757,334 · App. 06/940,242
System for density correction of medical imaging film hard copy
Inventor:
Ivan Volent
Patented Case
View Patent ↗
Granted: Jul 12, 1988
Filed: Dec 9, 1986
Inventor
Ivan Volent
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.