Appeal No. 2003-1632 Application 09/173,991 These include the verification and entry of the suitable cryptographic key which is discussed at columns 15 and 16 relating to the public key system relied upon by Chaum specifically as taught there from the prior art discussion at column 5. The acceptability or unacceptability of the bidirectional communications is discussed in greater detail in the remaining parts of the reference and shown in figure 5. Table 1 at column 17 indicates the transmit identification is identified in certain frames as well as the validity status as an acknowledgment or nonacknowledgment capability of the respective subelements communicating with each other. Since we have found that Chaum teaches within 35 U.S.C. § 102 the disputed features of representative inde- pendent claims 40 and 70 argued by appellants in the Brief and Reply Brief, we sustain the rejection of respective independent claims 40, 46, 70 and 73 rejected under 35 U.S.C. § 102 as well as their corresponding dependent claims rejected under this statutory basis and under 35 U.S.C. § 103. On the other hand, we have not sustained the rejection of independent claims 56 and 60 under 35 U.S.C. § 102 and their corresponding dependent claims rejected under 35 U.S.C. § 102 and 35 U.S.C. § 103. As such, the decision of the examiner is affirmed-in-part. 9Page: Previous 1 2 3 4 5 6 7 8 9 10 11 NextLast modified: November 3, 2007