Granted Patent
Utility
US 6,133,481 · App. 09/021,502
Isocyanate compositions for low density polyurethane foam
Inventors:
Sachchida N. Singh, Michael John Cartmell, James Holloway
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Feb 10, 1998
Inventors
Sachchida N. Singh
Michael John Cartmell
James Holloway
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.