Granted Patent
Utility
US 5,996,534 · App. 08/881,929
Animal litter having the property of detecting urinary infection in felines
Inventors:
Ralph J. Steckel, Edward Eugene Hodges, III, Herman Morris Weller
Patented Case
View Patent ↗
Granted: Dec 7, 1999
Filed: Jun 25, 1997
Inventors
Ralph J. Steckel
Edward Eugene Hodges, III
Herman Morris Weller
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.