Granted Patent
Utility
US 4,820,726 · App. 07/003,156
Oxaloamino substituted fluorinated resorcinol ethers and anti-allergic and anti-inflammatory use thereof
Inventors:
Andreas Beck, Alfred Sallmann, Robert W. Lang, Paul Wenk
Patented Case
View Patent ↗
Granted: Apr 11, 1989
Filed: Jan 14, 1987
Inventors
Andreas Beck
Alfred Sallmann
Robert W. Lang
Paul Wenk
Assignee (at issue)
Ciba-Geigy
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.