Granted Patent
Utility
US 6,444,673 · App. 09/722,438
Optically active 5H-pyrrolo[3,4-b]pyrazine derivative, its preparation and pharmaceutical compositions containing it
Inventors:
Claude Cotrel, Gerard Roussel
Patented Case
View Patent ↗
Granted: Sep 3, 2002
Filed: Nov 28, 2000
Inventors
Claude Cotrel
Gerard Roussel
Assignee (at issue)
Sepracor, Inc.
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.