Granted Patent
Utility
US 4,737,462 · App. 06/753,717
Structural genes, plasmids and transformed cells for producing cysteine depleted muteins of interferon-.beta.
Inventors:
David F. Mark, Leo S. Lin, Shi-Da Yu Lu
Patented Case
View Patent ↗
Granted: Apr 12, 1988
Filed: Jul 10, 1985
Inventors
David F. Mark
Leo S. Lin
Shi-Da Yu Lu
Assignee (at issue)
Cetus 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.