Granted Patent
Utility
US 6,319,356 · App. 09/310,622
Process for controlling odor in paper and paperboard using a halohydantoin
Inventors:
Frank Durkes, Walter Dubach
Patented Case
View Patent ↗
Granted: Nov 20, 2001
Filed: May 12, 1999
Inventors
Frank Durkes
Walter Dubach
Assignee (at issue)
Great Lakes Chemical Corp.
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.