Procedure for the irreversible binding of proteins onto polystyrene surfaces with retention of their biological activity, polystyrene surfaces obtained by this procedure, and their use

Granted: Mar 31, 1987 Filed: Mar 21, 1984

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.