Granted Patent
Utility
US 4,461,771 · App. 06/471,099
Treatment of migraine with dioxopiperidine derivatives
Inventors:
Maurice W. Gittos, David Anthony Amey
Patented Case
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Granted: Jul 24, 1984
Filed: Mar 1, 1983
Inventors
Maurice W. Gittos
David Anthony Amey
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.