Classify the given a piece of financial news into three classes: positive, negative, and neutral. Output must be 'positive', 'negative', or 'neutral'.

Input: Consider Input: ALEXANDRIA , Va. , May 16 -- Kenneth Bower of Vista , Calif. , has developed an ornamental design for a handset , the U.S. Patent & Trademark Office announced .

Output: neutral

Input: Consider Input: Net sales surged by 18.5 % to EUR167 .8 m. Teleste said that EUR20 .4 m , or 12.2 % , of the sales came from the acquisitions made in 2009 .

Output: positive

Input: Consider Input: The companies signed the letter of intent for the sale on 17 September 2010 and envisaged to seal the actual agreement on 1 January 2011 .
Output: neutral