Appeal No. 2003-1308 Application No. 09/287,176 wherein R is a C1-C4 alkyl radical; R11 and R12, which are identical or different, are chosen from a hydrogen atom and a C1-C4 alkyl radical; -6-Page: Previous 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 NextLast modified: November 3, 2007