Granted Patent
Utility
US 5,407,657 · App. 08/202,807
Hybrid magnetic resonance contrast agents
Inventors:
Evan C. Unger, Guanli Wu
Patented Case
View Patent ↗
Granted: Apr 18, 1995
Filed: Feb 28, 1994
Inventors
Evan C. Unger
Guanli Wu
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.