Granted Patent
Utility
US 4,252,912 · App. 06/139,368
Process for polymerizing terpolymer polyblends having low surface gloss
Inventor:
Edward F. Tokas
Patented Case
View Patent ↗
Granted: Feb 24, 1981
Filed: Apr 11, 1980
Inventor
Edward F. Tokas
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.