Granted Patent
Utility
US 4,558,043 · App. 06/628,970
Heterocyclicamino containing benzofurans and 2,3-dihydrobenzofurans, compositions and use
Inventors:
Paul Wenk, Werner Breitenstein, Marcus Baumann
Patented Case
View Patent ↗
Granted: Dec 10, 1985
Filed: Jul 11, 1984
Inventors
Paul Wenk
Werner Breitenstein
Marcus Baumann
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.