Granted Patent
Utility
US 5,457,139 · App. 08/096,806
Flexible water-blown polyurethane foams
Inventor:
James D. Gabbard
Patented Case
View Patent ↗
Granted: Oct 10, 1995
Filed: Jul 26, 1993
Inventor
James D. Gabbard
Assignee (at issue)
Monsanto 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.