Granted Patent
Utility
US 6,332,951 · App. 09/331,462
Method for measuring the content of bleaching chemicals used for bleaching cellulose fibers
Inventors:
Gerdt Fladda, Stig Norder, Bertil Olsson
Patented Case
View Patent ↗
Granted: Dec 25, 2001
Filed: Jun 21, 1999
Inventors
Gerdt Fladda
Stig Norder
Bertil Olsson
Assignee (at issue)
BTG Källe Inventing AB
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.