As noted, the test under copyright law is called "substantial similarity." Unless your work falls under some fair use exception it is very likely...

Would it be a complex procedure to hire a manager (non-owner)for my LLC ? (music copyright privacy concerns)

You can simply acquire a virtual office address and use that. I'm really not sure what all your concerns are here, so I suggest that you...

Can i use another product in my product if the product i'm making is completely different from the original?

The short answer is that in most cases you are free to use another's product as part of your own. To get a more precise answer, I suggest that...

Can I claim first use in a trademark app if someone else copied/ used my idea before I had a chance to do so?

This really requires a closer analysis in order to get any helpful advice. In general, before you invest in any trademark make sure you get...

While you probably run little risk in doing so, you are infringing on the NFL trademark by doing this. This is because the NFL does not endorse or...

I made this vape design at right. Would it be legal to sell a clothing with it? What would I have to change to make it legal?

You are essentially relying on this being considered a parody and therefore not a trademark infringement. Typically, "parody must convey two...

So long as you are not creating market confusion thereby violating trademark law you can use "inspired by" or "compare with" etc. While you can...

Hi I wanted to know is it illegal to put my logo on clothing,that a manufacturer makes ?

Assuming you have an agreement with the maker that allows you to rebrand the product under your own label that should be fine. That is referred to...

In general, you are free to use components of other manufacturers in your own product. In some cases, it might even be beneficial to specifically...

Is it illegal to enlarge postage stamps (Hungary, 1963 & 2018, unused) for framing? What about just framing the untouched stamp?

This is likely to be seen as creating a derivative work and thus infringing if done without permission from the copyright owner. In some cases...