Exhibit 10.20 June 30, 1997 Mr. John T. Karcanes Dear John: This letter is intended to set forth our agreement regarding your resignation from employment with Bio-Vascular, Inc. ("Bio-Vascular"). As discussed, you will be resigning as an officer and...Severance Agreement • December 23rd, 1997 • Bio Vascular Inc • Orthopedic, prosthetic & surgical appliances & supplies • Minnesota
