Granted Patent
Utility
US 4,801,711 · App. 07/065,131
Ethers of substituted hydroxymethlypyrazines
Inventors:
Paolo Cozzi, Antonio Pillan, Leone Bertone, Pier P. Lovisolo
Patented Case
View Patent ↗
Granted: Jan 31, 1989
Filed: Jun 16, 1987
Inventors
Paolo Cozzi
Antonio Pillan
Leone Bertone
Pier P. Lovisolo
Assignee (at issue)
Farmitalia Carlo Erba S.r.l.
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.