Whenever you feel fancy. But seriously: use it for unregistered trademarks—your brand name, logo, or slogan. It tells the world you’re claiming it.
Don’t use it on common words like “apple” unless you’re Apple. They’d sue you, and they have very good lawyers. Stick to your own creations.
And remember: ® is a different beast. That’s for federally registered trademarks. ™ is the wild west. ® is the sheriff. Know your badges.
The Final Punchline
You now have the power. ™ is your friend. It’s a tiny symbol with a big attitude.
Go forth. Type (tm) like a boss. Press Alt + 0153 with swagger. Open the Symbol menu like you own the place.
Your brand is safe. Your fingers are fast. And you’re officially cooler than that lawyer who still Googles it.
Now, go add ™ to your cat’s name. I won’t tell anyone.