Apple filed a motion late Monday to extend the preliminary sales injunction against Samsung's Galaxy Tab 10.1 tablet in the US while that particular aspect of the case is being appealed, a move designed to head off any attempt US District Court Judge Lucy Koh may make to dissolve the injunction based on the findings of the jury. In the recently-concluded trial, one of the jury's few nods to Samsung was a finding that the tablet, which has been banned in several countries due to its violation of design patents, infringed on three software patents but did not infringe on Apple's design patents.