U.S. officials said they weren’t seeking to extend nuclear negotiations with Iran beyond a Nov. 24 deadline, as Secretary of State John Kerry met with his Iranian counterpart on Wednesday. The negotiations here were part of what is expected to be an intense final push for a comprehensive agreement between global powers and Tehran that seeks to curtail Iran’s nuclear program in exchange for an easing of Western sanctions. U.S. officials in Vienna said they were “chipping away” on a draft of a final agreement but that significant gaps remained.