Granted Patent
Utility
US 5,912,347 · App. 08/939,245
Process for preparing a morphinan derivative
Inventors:
Tomas Hudlicky, Gabor Butora
Patented Case
View Patent ↗
Granted: Jun 15, 1999
Filed: Sep 29, 1997
Inventors
Tomas Hudlicky
Gabor Butora
Assignee (at issue)
MALLINCKRODT LLC
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.