Granted Patent
Utility
US 4,401,760 · App. 06/313,440
Heteropolysaccharide S-194
Inventors:
Jerry A. Peik, Suzanna M. Steenbergen, Harold R. Hayden
Patented Case
View Patent ↗
Granted: Aug 30, 1983
Filed: Oct 21, 1981
Inventors
Jerry A. Peik
Suzanna M. Steenbergen
Harold R. Hayden
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.