Granted Patent
Utility
US 4,975,466 · App. 07/282,928
Pharmaceutical preparations for topical application and their use in the treatment of inflammatory skin diseases
Inventors:
Irmgard Bottcher, Werner Pignat
Patented Case
View Patent ↗
Granted: Dec 4, 1990
Filed: Dec 7, 1988
Inventors
Irmgard Bottcher
Werner Pignat
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.