Granted Patent
Utility
US 4,889,933 · App. 07/242,834
4-azasaccharines, 4-aza-dihydro- or -tetrahydro-saccharines
Inventors:
Adrian Waldner, Willy Meyer
Patented Case
View Patent ↗
Granted: Dec 26, 1989
Filed: Sep 12, 1988
Inventors
Adrian Waldner
Willy Meyer
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.