Granted Patent
Utility
US 5,510,258 · App. 08/252,612
Porcine reproductive and respiratory syndrome virus antigen and processes for the preparation and use of said antigen in vaccines and diagnostics
Inventors:
Thomas Sanderson, Michael J. McGinley, Jeffrey J. Zimmerman, Howard T. Hill, Michael C. Meetz, Eugene C. Pirtle, Sabrina L. Swenson, George P. Shibley
Patented Case
View Patent ↗
Granted: Apr 23, 1996
Filed: Jun 1, 1994
Inventors
Thomas Sanderson
Michael J. McGinley
Jeffrey J. Zimmerman
Howard T. Hill
Michael C. Meetz
Eugene C. Pirtle
Sabrina L. Swenson
George P. Shibley
Assignees (at issue)
Bayer Aktiengesellschaft
Iowa State University Research Foundation, Inc.
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.