https://www.scconline.com/blog/post/2020/12/05/can-a-generic-expression-be-granted-registration-and-or-protection-as-a-trade-mark-under-trade-mark-laws-ipab-explains-if-n-95-is-capable-of-being-registered-or-protected-as-a-trade-mark/
Can a generic expression be granted registration and/or protection as a trade mark under trade mark laws? IPAB explains if "N 95" is capable of being registered or protected as a trade mark