Applied Precision Holdings, LLC AMENDMENT TO PROMISSORY NOTE December 28, 2004

Exhibit 10.13

Applied Precision Holdings, LLC

December 28, 2004

Reference is made tothe Promissory Note (“Note”) granted by Applied Precision Holdings, LLC (“APHLLC”) to Ronald C. Seubert dated March 31, 2003, in the amount of $300,000.00.

The Note stated that all principal and interest due under the Note was due and payable in full in cash on September 30, 2004 (the “MaturityDate”).

The parties to the Note hereby agree that the Maturity Date is hereby amended to September 30, 2006. All other terms andconditions of the Note are unchanged, and shall continue in full force and effect.

 

Applied Precision Holdings, LLC

By:

 

/s/ Bruce Holdren

Bruce Holdren

Chief Financial Officer

/s/ Ronald C. Seubert

Ronald C. Seubert