Granted Patent
Utility
US 4,451,617 · App. 06/408,377
Miscible polyblend and molded article produced therefrom
Inventor:
Bi L. Khac
Patented Case
View Patent ↗
Granted: May 29, 1984
Filed: Aug 16, 1982
Inventor
Bi L. Khac
Assignee (at issue)
Atlantic Richfield 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.