Granted Patent
Utility
US 5,674,908 · App. 08/171,232
Highly packed polycationic ammonium, sulfonium and phosphonium lipids
Inventors:
Alberto Haces, Valentina C. Ciccarone
Patented Case
View Patent ↗
Granted: Oct 7, 1997
Filed: Dec 20, 1993
Inventors
Alberto Haces
Valentina C. Ciccarone
Assignee (at issue)
LIFE TECHNOLOGIES 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.