Granted Patent
Utility
US 5,256,411 · App. 07/720,591
Immune cell proliferation inhibitors
Inventors:
Anthony Bolton, Alan Drizen
Patented Case
View Patent ↗
Granted: Oct 26, 1993
Filed: Jun 28, 1991
Inventors
Anthony Bolton
Alan Drizen
Assignee (at issue)
Intermune Life Sciences, 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.