Granted Patent
Utility
US 6,646,041 · App. 09/963,058
Aqueous dispersion of addition polymer particles
Inventors:
Neal St. John Williams, Stephen Barry Downing
Patented Case
View Patent ↗
Granted: Nov 11, 2003
Filed: Sep 25, 2001
Inventors
Neal St. John Williams
Stephen Barry Downing
Assignee (at issue)
IMPERIAL CHEMICAL INDUSTRIES LIMITED
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.