Granted Patent
Utility
US 4,424,207 · App. 06/290,620
Enzyme inhibitors
Inventors:
Michael Szelke, David M. Jones, Allan Hallett
Patented Case
View Patent ↗
Granted: Jan 3, 1984
Filed: Aug 5, 1981
Inventors
Michael Szelke
David M. Jones
Allan Hallett
Assignee (at issue)
Ferring Pharmaceuticals A/S
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.