Granted Patent
Utility
US 4,656,115 · App. 06/800,108
Emulsion polymerization of methacrylonitrile in the presence of a cationic emulsifier as a vehicle for vesicular photography
Inventors:
Ahmad Arfaei, Everett W. Bennett
Patented Case
View Patent ↗
Granted: Apr 7, 1987
Filed: Nov 22, 1985
Inventors
Ahmad Arfaei
Everett W. Bennett
Assignee (at issue)
James River Graphics Limited
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.