Granted Patent
Utility
US 4,150,674 · App. 05/864,881
Three-component blends of a polyamide, and a polyester and a lactam terpolymer
Inventor:
Kai-Lim W. Yung
Patented Case
View Patent ↗
Granted: Apr 24, 1979
Filed: Dec 27, 1977
Inventor
Kai-Lim W. Yung
Assignee (at issue)
Monsanto 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.