Granted Patent
Utility
US 4,269,939 · App. 06/161,619
Preparation of heteropolysaccharide S-119
Inventors:
Kenneth S. Kang, George T. Veeder, III, Peter J. Mirrasoul
Patented Case
View Patent ↗
Granted: May 26, 1981
Filed: Jun 20, 1980
Inventors
Kenneth S. Kang
George T. Veeder, III
Peter J. Mirrasoul
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.