Granted Patent
Utility
US 5,281,698 · App. 07/734,749
Preparation of an activated polymer ester for protein conjugation
Inventor:
Danute E. Nitecki
Patented Case
View Patent ↗
Granted: Jan 25, 1994
Filed: Jul 23, 1991
Inventor
Danute E. Nitecki
Assignee (at issue)
Cetus Oncology Corporation
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.