Granted Patent
Utility
US 4,967,433 · App. 07/353,104
Foam body support member having elongated chevron-shaped convolutions
Inventor:
Charles O. Neal
Patented Case
View Patent ↗
Granted: Nov 6, 1990
Filed: May 17, 1989
Inventor
Charles O. Neal
Assignee (at issue)
DeRoyal Industries, 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.