Granted Patent
Utility
US 6,586,449 · App. 10/166,236
Nicotine-containing, controlled release composition and method
Inventor:
John A. Walling
Patented Case
View Patent ↗
Granted: Jul 1, 2003
Filed: May 28, 2002
Inventor
John A. Walling
Assignee (at issue)
CAMBREX CHARLES CITY, 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.