Granted Patent
Utility
US 6,403,220 · App. 09/734,904
Phosphorus element-containing crosslinking agents and flame retardant phosphorus element-containing epoxy resin compositions prepared therewith
Inventors:
David J. Brennan, John P. Everett, Bassam S. Nader
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Dec 11, 2000
Inventors
David J. Brennan
John P. Everett
Bassam S. Nader
Assignee (at issue)
THE DOW CHEMICAL 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.