Granted Patent
Utility
US 5,660,844 · App. 08/529,276
Collar to control arthropod infestations of animals
Inventors:
Howard Christie, Charles S. Pinzino
Patented Case
View Patent ↗
Granted: Aug 26, 1997
Filed: Sep 15, 1995
Inventors
Howard Christie
Charles S. Pinzino
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.