Granted Patent
Utility
US 6,413,996 · App. 09/801,344
Diaminocyclobutene-3,4-dione derivatives, their preparation and use
Inventors:
Bjarne H. Dahl, Palle Christophersen
Patented Case
View Patent ↗
Granted: Jul 2, 2002
Filed: Mar 8, 2001
Inventors
Bjarne H. Dahl
Palle Christophersen
Assignee (at issue)
Neurosearch A/S
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.