Granted Patent
Utility
US 6,733,698 · App. 10/077,701
Mixture of mono-, bis- and tris-(hydroxyaryl) phosphine oxides useful to make polyglycidyl ethers or in epoxy compositions
Inventors:
Mark V. Hanson, Larry D. Timberlake
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: Feb 14, 2002
Inventors
Mark V. Hanson
Larry D. Timberlake
Assignee (at issue)
PABU Services, Inc.
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.