Granted Patent
Utility
US 5,202,258 · App. 07/847,873
Immunosuppressant-producing culture
Inventors:
Shieh-Shung T. Chen, Byron H. Arison, George M. Garrity, Edward S. Inamine, Sagrario Mochales, Linda S. Wicker
Patented Case
View Patent ↗
Granted: Apr 13, 1993
Filed: Mar 9, 1992
Inventors
Shieh-Shung T. Chen
Byron H. Arison
George M. Garrity
Edward S. Inamine
Sagrario Mochales
Linda S. Wicker
Assignee (at issue)
MERCK & CO., 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.