Granted Patent
Utility
US 5,356,944 · App. 08/181,483
High melt index polystytene foam and method
Inventors:
James E. Blythe, Edward A. Colombo, Charles M. Krutchen, Phillip A. Williams, Wen P. Wu
Patented Case
View Patent ↗
Granted: Oct 18, 1994
Filed: Jan 14, 1994
Inventors
James E. Blythe
Edward A. Colombo
Charles M. Krutchen
Phillip A. Williams
Wen P. Wu
Assignee (at issue)
Mobil Oil 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.