Granted Patent
Utility
US 4,666,839 · App. 06/445,986
Methods and materials for obtaining microbial expression of polypeptides including bovine prolactin
Inventor:
Lawrence M. Souza
Patented Case
View Patent ↗
Granted: May 19, 1987
Filed: Dec 1, 1982
Inventor
Lawrence M. Souza
Assignee (at issue)
Amgen Inc.
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.