Granted Patent
Utility
US 6,740,686 · App. 09/723,034
Process for the manufacture of polyurethane foam, amine polyesterpolyol used in this process and foam obtained
Inventors:
Denis Ghesquiere, Remy Dumont
Patented Case
View Patent ↗
Granted: May 25, 2004
Filed: Nov 27, 2000
Inventors
Denis Ghesquiere
Remy Dumont
Assignee (at issue)
Crompton Corporation
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.