Granted Patent
Utility
US 6,500,417 · App. 08/569,284
Mutants of human interleukin-3
Inventors:
Lambertus Christiaan Johannes Dorssers, Robert Willem Van Leen
Patented Case
View Patent ↗
Granted: Dec 31, 2002
Filed: Dec 8, 1995
Inventors
Lambertus Christiaan Johannes Dorssers
Robert Willem Van Leen
Assignee (at issue)
DSM N.V.
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.