Granted Patent
Utility
US 4,874,769 · App. 07/124,800
Quinolinyl ether or thioether tetrazoles as agents for the treatment of hypersensitive ailments
Inventors:
Raymond D. Youssefyeh, Utpal R. Chakraborty, Ernest Magnien, Rohit Desai, Thomas Lee
Patented Case
View Patent ↗
Granted: Oct 17, 1989
Filed: Jan 5, 1988
Inventors
Raymond D. Youssefyeh
Utpal R. Chakraborty
Ernest Magnien
Rohit Desai
Thomas Lee
Assignee (at issue)
Rorer Pharmaceutical Corporation
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.