Granted Patent
Utility
US 5,643,902 · App. 08/214,653
Veterinary treatment
Inventor:
Victor Charles Cracknell
Patented Case
View Patent ↗
Granted: Jul 1, 1997
Filed: Mar 16, 1994
Inventor
Victor Charles Cracknell
Assignee (at issue)
Pfizer 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.