Granted Patent
Utility
US 4,438,162 · App. 06/419,528
Modified ionomer blend and application thereof
Inventor:
Wayne Nelson
Patented Case
View Patent ↗
Granted: Mar 20, 1984
Filed: Sep 17, 1982
Inventor
Wayne Nelson
Assignee (at issue)
A. Schulman, 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.