Granted Patent
Utility
US 5,159,070 · App. 07/595,301
Process for the preparation of derivative of 7-[(2-hydroxyimino)-acetamido]-cephalosporanic acid
Inventors:
Rene Heymes, Jean Jolly, Primo Rizzi
Patented Case
View Patent ↗
Granted: Oct 27, 1992
Filed: Oct 10, 1990
Inventors
Rene Heymes
Jean Jolly
Primo Rizzi
Assignee (at issue)
Roussel Uclaf
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.