Granted Patent
Utility
US 5,648,501 · App. 08/681,025
Process for synthesizing carbapenem side chain intermediates
Inventor:
Karel Marie Joseph Brands
Patented Case
View Patent ↗
Granted: Jul 15, 1997
Filed: Jul 22, 1996
Inventor
Karel Marie Joseph Brands
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.