Granted Patent
Utility
US 6,833,133 · App. 10/725,841
Escape mutants of Newcastle disease virus as marker vaccines
Inventors:
Harmen Jacob Geerligs, Ian Hamer Brown, Dennis J. Alexander, Michael S. Collins
Patented Case
View Patent ↗
Granted: Dec 21, 2004
Filed: Dec 2, 2003
Inventors
Harmen Jacob Geerligs
Ian Hamer Brown
Dennis J. Alexander
Michael S. Collins
Assignee (at issue)
Wyeth, LLC
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.