Granted Patent
Utility
US 5,081,119 · App. 07/475,490
Use of 5-alkylpyridazine derivatives as drugs active on the cholinergic system
Inventors:
Robert Boigegrain, Camille G. Wermuth, Paul Worms
Patented Case
View Patent ↗
Granted: Jan 14, 1992
Filed: Feb 7, 1990
Inventors
Robert Boigegrain
Camille G. Wermuth
Paul Worms
Assignee (at issue)
Sanofi
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.