Granted Patent
Utility
US 4,340,342 · App. 06/225,498
Apparatus for processing elastomeric materials
Inventor:
Heung T. Kim
Patented Case
View Patent ↗
Granted: Jul 20, 1982
Filed: Jan 16, 1981
Inventor
Heung T. Kim
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.