Granted Patent
Utility
US 5,874,561 · App. 08/471,227
DNA, host cell and vector encoding a protein with cytokine inhibitory activity
Inventors:
John Stephen Haskill, George A. Martin, Peter Ralph
Patented Case
View Patent ↗
Granted: Feb 23, 1999
Filed: Jun 6, 1995
Inventors
John Stephen Haskill
George A. Martin
Peter Ralph
Assignee (at issue)
Chiron Corporation/Chapel Hill North Carolina
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.