Granted Patent
Utility
US 6,562,875 · App. 09/945,460
Aqueous defoamer composition
Inventors:
Gilles Corbel, James J. Svarz, Alan Smith
Patented Case
View Patent ↗
Granted: May 13, 2003
Filed: Aug 30, 2001
Inventors
Gilles Corbel
James J. Svarz
Alan Smith
Assignee (at issue)
Ondeo Nalco 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.