Licensee estoppel

Okay, imagine you have a toy that you want to share with your friend. You lend the toy to your friend, but you both agree that they cannot break it or take it away from you. This is like a licensee agreement - it's an agreement where one person (the licensee) gets permission from another person (the licensor) to use something, but the licensor still owns it.

Now, let's say your friend breaks the toy, but then they try to say they didn't know they couldn't do that. This is where licensee estoppel comes in. Licensee estoppel is like telling your friend that they can't pretend they didn't know the rules they agreed to. If they agreed not to break the toy, they can't act like they didn't know that was a rule.

Licensee estoppel is a legal concept that says a licensee cannot deny the validity of the license agreement that they agreed to. Basically, if they agreed to certain rules or conditions when they got permission to use something, they cannot later take that back and say they didn't know or didn't agree to those rules. Just like if your friend breaks the toy, they can't say they didn't know they weren't supposed to.