Granted Patent
Utility
US 5,374,635 · App. 08/037,862
Furo[3,2-b]pyridines and thieno[3,2-b]pyridines as inhibitors of leukotriene biosynthesis
Inventors:
Serge Leger, John Howard Hutchinson
Patented Case
View Patent ↗
Granted: Dec 20, 1994
Filed: Mar 29, 1993
Inventors
Serge Leger
John Howard Hutchinson
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.