Trademarks can be used, but they are not protected by law. As long as the enterprise's logo does not conflict with the previously applied trademark or the rights protected by others' laws, it can be used, but it is not protected by law. Others can imitate you or use the same LG. If your trademark has been cancelled for half a year and you want to continue to use it, I suggest you reapply. And the success rate is greater than the general situation. Article 50 of the Trademark Law stipulates that a registered trademark is revoked, declared invalid or not renewed upon expiration. Within one year from the date of revocation, invalidation or cancellation, the Trademark Office shall not approve an application for trademark registration that is identical with or similar to the trademark.