Granted Patent
Utility
US 5,229,492 · App. 07/540,169
Cloned streptococcal genes encoding protein G and their use to construct recombinant microorganisms to produce protein G
Inventor:
Stephen R. Fahnestock
Patented Case
View Patent ↗
Granted: Jul 20, 1993
Filed: Jun 19, 1990
Inventor
Stephen R. Fahnestock
Assignee (at issue)
PHARMACIA LKB BIOTECHNOLOGY AB
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.