Granted Patent
Utility
US 4,452,901 · App. 06/261,217
Electrophoretically transferring electropherograms to nitrocellulose sheets for immuno-assays
Inventors:
Julian Gordon, Theophil Staehelin, Harry Towbin
Patented Case
View Patent ↗
Granted: Jun 5, 1984
Filed: Apr 20, 1981
Inventors
Julian Gordon
Theophil Staehelin
Harry Towbin
Assignee (at issue)
Ciba-Geigy
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.