Granted Patent
Utility
US 4,435,426 · App. 06/381,796
Ethers of phenol active on the cardiovascular system, process for preparing same and use thereof in drugs
Inventors:
Henri Demarne, Jean Wagnon
Patented Case
View Patent ↗
Granted: Mar 6, 1984
Filed: May 25, 1982
Inventors
Henri Demarne
Jean Wagnon
Assignee (at issue)
Societe Anonyme dite : SANOFI
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.