Granted Patent
Utility
US 5,428,033 · App. 07/774,396
Saturated hydroxyalkylquinoline acids as leukotriene antagonists
Inventors:
Michel Belley, Serge Leger, Patrick Roy, Yi Bin Xiang, Marc Labelle
Patented Case
View Patent ↗
Granted: Jun 27, 1995
Filed: Oct 10, 1991
Inventors
Michel Belley
Serge Leger
Patrick Roy
Yi Bin Xiang
Marc Labelle
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.