And, they can be revoked long after a trademark is received, through genericide [1]! This was even tested with "google" [2]. [1] https://www.bentley.edu/news/

And, they can be revoked long after a trademark is received, through genericide [1]! This was even tested with "google" [2]. [1] https://www.bentley.edu/news/popular-brands-had-their-trademarks-revoked-law#:~:text=The%20thermos%2C%20yo%2Dyo%2C,in%20a%20court%20of%20law https://www.bentley.edu/news/popular-brands-had-their-tradem.... [2] https://www.abajournal.com/news/article/google_retains_its_trademark_though_the_name_is_used_as_a_verb_appeals_cour https://www.abajournal.com/news/article/google_retains_its_t...