Granted Patent
Utility
US 4,861,783 · App. 07/186,242
4-quinoline carboxylic acid derivatives useful for treating skin and muco-epithelial diseases
Inventors:
Neil R. Ackerman, Richard R. Harris, Scott E. Loveless, Russel H. Neubauer
Patented Case
View Patent ↗
Granted: Aug 29, 1989
Filed: Apr 26, 1988
Inventors
Neil R. Ackerman
Richard R. Harris
Scott E. Loveless
Russel H. Neubauer
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
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.