In today’s Rzeczpospolita, Dr. Michal Markiewicz writes about the trademark and, more specifically, the impact of modifying it during use on the durability of the obtained right. So, does making changes to a sign expose the right holder to the risk of losing the right? As is usually the case with the law, the answer should be “it depends.” Well, from what, exactly? Publicly available excerpt from the article: https://archiwum.rp.pl/artykul/1501069-Modyfikujac-znak-towarowy-ryzykujesz-utrate-prawa.html