Gorilla Grodd

Gorilla Grodd is a staple character in the Flash’s Rogue’s Gallery. He’s a superintelligent gorilla from Gorilla City, a highly advanced metropolis and he has the ability to use telepathy and is super strong.

Gorilla Grodd is public domain due to a failure to renew Flash #106 from 1959, meaning the copyright expired in 1988.

Barry Allen and other Flash characters remain under copyright. I also could find no trademark for Gorilla Grodd, but maybe i just didn’t search thoroughly enough.

Links

Wikipedia

Fin Fang Foom

 Image of an orange dragon ripping apart a vehicle with people shooting at it with the name Fin Fang Foom above it in big letters
Fin Fang Foom as they appear in Strange Tales #89 (1961)

Fin Fang Foom is an ancient dragon being that can shapeshift that is awakened to attack the Communist Party thanks to some herbs by Chan Liuchow when his homeland of Taiwan is under threat.

Strange Tales #89 was not renewed 28 years after publication as was standard at the time so copyright would’ve expired in 1989.

: image of copyright renewal listings for various issues of Strange Tales but it jumps from number 84 to 100 omitting several ones in the renewal process

They specifically did not renew issues 85 to 99 so those are all public domain now.

Notes

  • Marvel used to own the trademark for Fin Fang Foom but it has since lapsed as seen here

Links