Granted Patent
Utility
US 4,393,017 · App. 06/274,997
Apparatus and method for making foamed resin products
Inventors:
Hueng T. Kim, Sam D. Nehmey
Patented Case
View Patent ↗
Granted: Jul 12, 1983
Filed: Jun 18, 1981
Inventors
Hueng T. Kim
Sam D. Nehmey
Assignee (at issue)
B. F. Goodrich 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.