Granted Patent
Utility
US 5,856,322 · App. 08/598,758
Unsaturated hydroxyalkylquinoline acids as leukotriene antagonists
Inventors:
Michel Belley, Serge Leger, Patrick Roy, Marc Labelle, Yi Bin Xiang, Daniel Guay
Patented Case
View Patent ↗
Granted: Jan 5, 1999
Filed: Feb 8, 1996
Inventors
Michel Belley
Serge Leger
Patrick Roy
Marc Labelle
Yi Bin Xiang
Daniel Guay
Assignee (at issue)
Merck Frosst Canada Ltd.
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.