Granted Patent
Utility
US 4,686,240 · App. 06/791,515
Process for producing polyurethane foams using foam modifiers
Inventors:
Frederick E. Bailey, Jr., Michael W. Jorgenson, Robert D. Whitman
Patented Case
View Patent ↗
Granted: Aug 11, 1987
Filed: Oct 25, 1985
Inventors
Frederick E. Bailey, Jr.
Michael W. Jorgenson
Robert D. Whitman
Assignee (at issue)
Union Carbide 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.