Granted Patent
Utility
US 4,304,796 · App. 06/234,527
Fast-cooling styrene polymer foams
Inventors:
John P. Spicuzza, Jr., John G. Klepic, III
Patented Case
View Patent ↗
Granted: Dec 8, 1981
Filed: Feb 17, 1981
Inventors
John P. Spicuzza, Jr.
John G. Klepic, III
Assignee (at issue)
Arco Polymers, Inc.
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.