Granted Patent
Utility
US 6,419,925 · App. 09/968,927
Toxoplasma gondii antigens, the preparation thereof and the use thereof
Inventors:
Stefan Knapp, Robert Ziegelmaier, Hans Kupper
Patented Case
View Patent ↗
Granted: Jul 16, 2002
Filed: Oct 3, 2001
Inventors
Stefan Knapp
Robert Ziegelmaier
Hans Kupper
Assignee (at issue)
Dade Behring Marburg GmbH
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.