Granted Patent
Utility
US 4,851,409 · App. 07/011,181
2-substituted quinoline dioic acids and pharmaceutical compositions
Inventors:
Robert N. Young, Robert Zamboni, Serge Leger
Patented Case
View Patent ↗
Granted: Jul 25, 1989
Filed: Feb 5, 1987
Inventors
Robert N. Young
Robert Zamboni
Serge Leger
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.