Granted Patent
Utility
US 5,698,271 · App. 08/482,448
Methods for the manufacture of magnetically responsive particles
Inventors:
Paul A. Liberti, Galla Chandra Rao, Joseph N. Chiarappa
Patented Case
View Patent ↗
Granted: Dec 16, 1997
Filed: Jun 7, 1995
Inventors
Paul A. Liberti
Galla Chandra Rao
Joseph N. Chiarappa
Assignee (at issue)
IMMUNIVEST 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.