Granted Patent
Utility
US 4,529,745 · App. 06/490,279
Unsaturated polyoxyalkylene adduct/fumarate diester reaction product for cellular foam stabilization
Inventor:
Michael E. Londrigan
Patented Case
View Patent ↗
Granted: Jul 16, 1985
Filed: May 2, 1983
Inventor
Michael E. Londrigan
Assignee (at issue)
Jim Walter Resources, 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.