Granted Patent
Utility
US 4,315,083 · App. 06/150,274
Process for the continuous mass polymerization of polyblends
Inventor:
Raymond D. Burk
Patented Case
View Patent ↗
Granted: Feb 9, 1982
Filed: May 15, 1980
Inventor
Raymond D. Burk
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.