On January 5, 2012, the U.S. Patent and Trademark Office published proposed regulations for submitting patentee statements about the scope of the claims to the USPTO on or after September 16, 2012. These proposed regulations can be found at Federal Register Volume 77, Number 3: http://www.gpo.gov/fdsys/pkg/FR-2012-01-05/html/2011-33813.htm