Granted Patent
Utility
US 5,213,663 · App. 07/734,183
Method for controlling the sodium carbonate concentration of green liquor in the dissolving tank
Inventor:
Wolf Musow
Patented Case
View Patent ↗
Granted: May 25, 1993
Filed: Jul 22, 1991
Inventor
Wolf Musow
Assignee (at issue)
Fox Boro Company
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.