Granted Patent
Utility
US 5,314,811 · App. 07/909,346
Process for converting lipid-containing bacterial capsular polysaccharide into lipid-free polysaccharide
Inventors:
Ann Lee, Mark S. Rienstra, Walter Manger, Robert D. Sitrin
Patented Case
View Patent ↗
Granted: May 24, 1994
Filed: Jul 13, 1992
Inventors
Ann Lee
Mark S. Rienstra
Walter Manger
Robert D. Sitrin
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.