Granted Patent
Utility
US 6,462,219 · App. 09/764,549
Process for producing 3-hydroxypropionitrile
Inventors:
Bruno Burdet, August Ruettimann, Johann Riegl
Patented Case
View Patent ↗
Granted: Oct 8, 2002
Filed: Jan 17, 2001
Inventors
Bruno Burdet
August Ruettimann
Johann Riegl
Assignee (at issue)
Roche Vitamins 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.