Granted Patent
Utility
US 6,756,416 · App. 10/074,606
Hydrophilic ester polyurethane foams
Inventors:
Sharon A. Free, Vincenzo A. Bonaddio, Andrew Thompson, Joseph W. Lovette
Patented Case
View Patent ↗
Granted: Jun 29, 2004
Filed: Feb 12, 2002
Inventors
Sharon A. Free
Vincenzo A. Bonaddio
Andrew Thompson
Joseph W. Lovette
Assignee (at issue)
FOAMEX L.P.
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.