Granted Patent
Utility
US 6,733,827 · App. 09/832,580
Processes for manufacturing particles coated with activated lignosulfonate
Inventors:
Michael Donovan Mitchell, Blair Alex Owens, Dimitris Ioannis Collias, Andrew Wnuk
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: Apr 11, 2001
Inventors
Michael Donovan Mitchell
Blair Alex Owens
Dimitris Ioannis Collias
Andrew Wnuk
Assignee (at issue)
The Procter & Gamble 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.