Granted Patent
Utility
US 4,496,707 · App. 06/502,832
Polyurethane and method for making stable components thereof
Inventor:
Paul E. Liggett
Patented Case
View Patent ↗
Granted: Jan 29, 1985
Filed: Jun 9, 1983
Inventor
Paul E. Liggett
Assignee (at issue)
Goodyear Aerospace Corporation
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.