Appeal No. 2006-1625 Application No. 09/915,033 unduly burdensome for users in Lambropoulous’ system to periodically reactivate each of their keys [brief, page 7; reply brief, page 3]. The examiner responds that Guerin’s date/time code would be useful with Lambropoulous. Since Guerin’s system prevents programming of false key codes from the key into the lock, the examiner contends that combining such a system with Lambropoulous would prevent the vehicle receiver in Lambropoulous from storing unauthorized codes [answer, page 8]. The examiner further notes that the carrier in Guerin stores only one code at a time, and the carrier’s code is updated based upon a time/date parameter. According to the examiner, such a system would be useful in Lambropoulous to prevent fraudulently modifying the transmitter codes [answer, page 9]. The examiner also notes that requiring users to periodically reactivate keys in Lambropoulous would be no more burdensome than paying routine monthly bills (e.g., lease and loan payments, etc.) [answer, page 10]. The examiner also notes that the claims do not require that the date alone be non-sequential. Rather, the examiner notes that claims require that the transmitter stores an identification code that incorporates information that (1) is non-sequential, and (2) varies in order of the time that the code was determined [answer, pages 9 and 10]. Turning to the cited prior art, the examiner contends that the modified serial number of the Lambropoulous/Prosan combination is non-sequential. Moreover, according to the examiner, Guerin stores 7Page: Previous 1 2 3 4 5 6 7 8 9 10 11 NextLast modified: November 3, 2007