When a person quits a partnership who keeps the intellectual property?

This greatly depends on all the specific facts and circumstances. Before you take any action, I suggest that you consult with a lawyer in...

Can i be sue for purchasing shirts and jacket with a logo that the person design cause they want it back but i spent my money ?

This doesn't make any sense. If they have a complaint like you didn't pay them what they are owed they are free to bring that complaint, but they...

How and who do I contact to avoid infringement?

As noted, this will require a license from them. Before you commit to anything, I suggest that you consult with a lawyer in private and discuss...

Am I committing copyright infringement?

This sounds problematic on the trademark side. Before you commit to anything, I suggest that you consult with a lawyer in private and discuss...

I don't think it wise to try and weigh in on this here. You really need to consult legal counsel who can explore all the facts and specifics and...

I have written a novel that contains a unique acronym. I want to own this acronym. Should I copyright it, trademark it? thanks

You can't. Unless the acronym is being used in the real world as a trademark there is nothing to protect. If you need clarification, I suggest...

You are essentially filing a new application into different classes. You just have to let the USPTO know you are the owner of the current...

What needs to be done to get a song copyrighted?

Any creative expression will be covered by copyright law automatically. Then you register the work with the US Copyright Office so to perfect your...

With trademarks, does the USPTO distinguish between downloadable software or do they consider them all the same?

Sure, this will likely be a problem if they are identical names in the same class even if they are operating in different corners of the sandbox....

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Can I buy a cutting board, cut off the original brand, burn a design into it and then sell it?

The issue is something we call "reverse passing off" which is a form of trademark infringement. This is when you just remove the branding from an...