Granted Patent
Utility
US 4,515,951 · App. 06/635,461
Preparation of 5,6,7,7a-tetrahydro-4H-thieno[3,2-c]pyridin-2-one compounds
Inventors:
Robert Boigegrain, Jean-Pierre Maffrand, Norio Suzuki, Kynichi Matsubayachi, Shinichiro Ashida
Patented Case
View Patent ↗
Granted: May 7, 1985
Filed: Jul 25, 1984
Inventors
Robert Boigegrain
Jean-Pierre Maffrand
Norio Suzuki
Kynichi Matsubayachi
Shinichiro Ashida
Assignee (at issue)
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.