Granted Patent
Utility
US 4,569,969 · App. 06/680,582
Polyblends of styrene-maleic anhydride-methyl methylacrylate terpolymers/acrylonitrile-butadiene-styrene polymers and polycarbonates
Inventors:
William J. Jones, Robert A. Mendelson
Patented Case
View Patent ↗
Granted: Feb 11, 1986
Filed: Dec 10, 1984
Inventors
William J. Jones
Robert A. Mendelson
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.