Granted Patent
Utility
US 4,286,059 · App. 05/848,533
Polysaccharide and bacterial fermentation process for its preparation
Inventors:
Kenneth Suk Kang, George T. Veeder, III, Danny D. Richey
Patented Case
View Patent ↗
Granted: Aug 25, 1981
Filed: Nov 4, 1977
Inventors
Kenneth Suk Kang
George T. Veeder, III
Danny D. Richey
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.