Appeal No. 96-0819 Application No. 08/146,696 (1) the reference places no numerical limitation on molecular weight; (2) the reference teaching of a molecular weight range from 2,000 to 50,000 is merely a preferred range; (3) the -4-Page: Previous 1 2 3 4 5 6 7 8 9 10 NextLast modified: November 3, 2007