Granted Patent
Utility
US 6,101,978 · App. 08/686,309
Animal litter having the property of detecting urinary infection in cats
Inventor:
Ralph J. Steckel
Patented Case
View Patent ↗
Granted: Aug 15, 2000
Filed: Jul 25, 1996
Inventor
Ralph J. Steckel
Assignee (at issue)
Pet Ecology Brands, 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.