Granted Patent
Utility
US 6,017,420 · App. 09/008,508
Apparatus for automated monitoring of pulp retention time using an iodine salt tracer
Inventors:
Patrick J. Foody, Brian W. Creber
Patented Case
View Patent ↗
Granted: Jan 25, 2000
Filed: Jan 16, 1998
Inventors
Patrick J. Foody
Brian W. Creber
Assignee (at issue)
Iogen Corporation
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.