Granted Patent
Utility
US 5,874,077 · App. 08/448,889
Human til cells expressing recombinant TNF prohormone
Inventors:
Michael Kriegler, Carl Perez
Patented Case
View Patent ↗
Granted: Feb 23, 1999
Filed: May 24, 1995
Inventors
Michael Kriegler
Carl Perez
Assignee (at issue)
Chiron Corporation
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.