Granted Patent
Utility
US 6,048,536 · App. 08/817,417
Vaccine compositions
Inventor:
Steven Neville Chatfield
Patented Case
View Patent ↗
Granted: Apr 11, 2000
Filed: Apr 2, 1997
Inventor
Steven Neville Chatfield
Assignee (at issue)
Medeva Holdings BV
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.