Appeal No. 2004-1831 Application No. 09/338,095 Ste[i]dinger. The first and second edges would therefore be separably attached, along the line of perforation. The examiner’s rationale is fatally flawed. Although Yoshino may disclose a step of cutting his corona-discharged tubular film, the examiner’s proposed replacement of this cutting operation with a perforating operation would not yield the here claimed invention. This is because patentee’s cutting step is for the purpose of transforming the tubular article shown in Figure 2 into a sheet of film which is then provided with adhesive tape and folded into the shape depicted in Figure 1. From our perspective, replacing Yoshino’s cut with a perforation of the type taught by Steidinger would not in any way alter the aforementioned tape-applying and film-folding steps of Yoshino. Thus, if Yoshino’s tubular article shown in Figure 2 were provided with a perforation rather than a cut, an artisan would have severed this perforation in order to then perform the tape- applying and film-folding steps pursuant to patentee’s teaching. Indeed, it seemingly would be impossible to perform these last mentioned steps without first severing the perforation. In light of the foregoing, it is clear to us that the combined teachings of Yoshino and Steidinger would not have led to a roll of masking material having first and second edges 8Page: Previous 1 2 3 4 5 6 7 8 9 10 NextLast modified: November 3, 2007