Granted Patent
Utility
US 5,082,657 · App. 07/350,879
Leukoregulin, an antitumor lymphokine, and its therapeutic uses
Inventor:
Janet H. Ranson
Patented Case
View Patent ↗
Granted: Jan 21, 1992
Filed: May 11, 1989
Inventor
Janet H. Ranson
Assignee (at issue)
Akzo N.V.
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.