Granted Patent
Utility
US 6,514,556 · App. 09/738,806
Method and composition for washing poultry during processing
Inventors:
John D. Hilgren, Timothy A. Gutzmann, Robert D. P. Hei
Patented Case
View Patent ↗
Granted: Feb 4, 2003
Filed: Dec 15, 2000
Inventors
John D. Hilgren
Timothy A. Gutzmann
Robert D. P. Hei
Assignee (at issue)
ECOLAB 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.