Notice of Pre-AIA or AIA Status
The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA .
The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action.
Claims 1-16 are rejected under 35 U.S.C. 103 as being unpatentable over TW 492949 B in view of Nozaki et al. (US 2008/0187730).
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Applicant's arguments filed 11/17/2025 have been fully considered but they are not persuasive. The assertion that the elements and content ranges are different (than TW 492949/Nozaki) is noted but does not point out how same ranges do not overlap. The assertion that if Tamura’s Al2O3 content exceeds 18 wt% poor spinnability would result is not commensurate in scope with the instant claim(s) which are satisfied when the Al2O3 composition is 15 wt%. The same logic applies to MgO and B2O3.
Applicant argues that those skilled in the art would not be motivated to combine TW 492949/Nozaki because they would not have expected that TW 492949/Nozaki would have the beneficial feature of a low dielectric loss tangent. As there is no claimed requirement for a dielectric loss tangent value, this argument is not persuasive.
The previous rejection over Kawai et al. (US 2002/0039645) is withdrawn.
Claims 17-21 are objected to as being dependent upon a rejected base claim but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims.
THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a).
A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action.
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/BENJAMIN L UTECH/ 4/17/26 Primary Examiner, Art Unit 6212
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