Granted Patent
Utility
US 4,670,563 · App. 06/743,659
Imidazolides as intermediates for the synthesis of cytotoxic conjugates
Inventors:
Franz Jansen, Pierre Gros
Patented Case
View Patent ↗
Granted: Jun 2, 1987
Filed: Jun 11, 1985
Inventors
Franz Jansen
Pierre Gros
Assignee (at issue)
Sanofi
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.