Granted Patent
Utility
US 5,952,232 · App. 09/156,739
Expandible microparticle intracellular delivery system
Inventor:
James Rothman
Patented Case
View Patent ↗
Granted: Sep 14, 1999
Filed: Sep 17, 1998
Inventor
James Rothman
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.