Granted Patent
Utility
US 5,223,253 · App. 07/411,921
Bovine vaccine compositions and method for preventing trichomonas infections using same
Inventors:
Mark Hall, Bonnie L. Wallace, William M. Acree, Lloyd Chavez
Patented Case
View Patent ↗
Granted: Jun 29, 1993
Filed: Sep 28, 1989
Inventors
Mark Hall
Bonnie L. Wallace
William M. Acree
Lloyd Chavez
Assignee (at issue)
Amerimas Home Products, 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.