Granted Patent
Utility
US 4,579,876 · App. 06/690,300
Polyols for the production of rigid polyurethane foams
Inventor:
Miltiadis I. Iliopulos
Patented Case
View Patent ↗
Granted: Apr 1, 1986
Filed: Jan 10, 1985
Inventor
Miltiadis I. Iliopulos
Assignee (at issue)
Mobay Chemical Corporation
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.