ACKSHUALLY, abandonment is a thing with marks, that's why companies spend money to keep them in minimal use to avoid that, or, like Pepsi, lobby to create "famous" marks.
Notepad "iteration mark" is probably "merely descriptive" anyway (= And did I say they were? I just said it was a thing when someone acted like they were rights in gross like other IP. But thanks for showing off how smart you are! Always love to meet fellow people on the Internet who studied and practiced trademark law like I'm sure you did.
Pepsi isn't abandoned but Crystal Pepsi was close to having been. Thanks though, I wasn't aware you could still buy Pepsi lol.