Granted Patent
Utility
US 5,043,098 · App. 07/273,091
A non-ionic dispersing agent
Inventors:
John Christopher Padget, David Alan Pears, Stephen Yeates, Gerardus C. Overbeek
Patented Case
View Patent ↗
Granted: Aug 27, 1991
Filed: Nov 18, 1988
Inventors
John Christopher Padget
David Alan Pears
Stephen Yeates
Gerardus C. Overbeek
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.