Granted Patent
Utility
US 6,027,921 · App. 09/037,188
Chimeric proteins for use in transport of a selected substance into cells and DNA encoding chimeric proteins
Inventors:
Michael Heartlein, Jeffrey F. Lemontt, Michael F. Concino
Patented Case
View Patent ↗
Granted: Feb 22, 2000
Filed: Mar 9, 1998
Inventors
Michael Heartlein
Jeffrey F. Lemontt
Michael F. Concino
Assignee (at issue)
Transkaryotic Therapies, Inc.
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.