This excerpt taken from the TPTX 8-K filed May 16, 2005.
FORM OF ASSIGNMENT
FOR VALUE RECEIVED, _______________________________________ hereby sells, assigns and transfers
(please print name and address of transferee)
this Rights Certificate, together with all right, title and interest therein, and does hereby irrevocably constitute and appoint _____________________ Attorney, to transfer the within Rights Certificate on the books of the within-named Company, with full power of substitution.