Do I need permission to sell products with Coin logos?

[king718]

I have a few coins that I love and made some T-shirts with their logos and my down design incorporated with them. I showed some people and they are interested in buy. Are logos copyrighted or are they public domain? Can I open a shop with products having alt-coin logos on them? or would I need to contact each developer team?

[Vod]

I have a few coins that I love and made some T-shirts with their logos and my down design incorporated with them. I showed some people and they are interested in buy. Are logos copyrighted or are they public domain? Can I open a shop with products having alt-coin logos on them? or would I need to contact each developer team?

You won't get a simple answer here.  Read this:

https://www.wikihow.com/Find-Out-if-Something-Is-Copyrighted

If it is copyrighted, you need permission, or you can sued back over many years, raking back everything you ever made in profit.

[Brandtvig]

I have a few coins that I love and made some T-shirts with their logos and my down design incorporated with them. I showed some people and they are interested in buy. Are logos copyrighted or are they public domain? Can I open a shop with products having alt-coin logos on them? or would I need to contact each developer team?

You’ll have to research every single logo before using them. However, I think that the Bitcoin logo is not copyrighted. I AM not sure, though. I doubt that any of the big coins’ logos are copyrighted.

[Fortify]

Yes, as the other posters have mentioned - it is unlikely you will have problems if you are writing about them (free promotion) or doing something not-for-profit. However, it sounds like you want to turn this into a purely commercial venture for monetary gain, in which case the people who own the copyright on those logos would be missing out on revenue unless you license it from them.