I'm not 100% clear on what you are doing here, but if you are copying or displaying their logos presumably you would need a license because it can...

You could be violating their right of privacy and publicity, which are state governed laws that vary. These kick in when one uses the name, image...

You are free to use another's product as an ingredient of your own. That is common. But as noted, merely coating their product with something and...

Restarting 19th Century Music Journal

The content is controlled by copyright law, and anything published prior to 1924 will be in the public domain so that should not be an issue....

If your market is associating your product with the MLB team then this is a problem, yes. If you need clarification, I suggest that you consult...

What do I have to do to get a patent for my product and if I tell someone before that would he be able to use my product?

You would use a private contract like a Non-Disclosure Agreement to ensure confidentiality. A patent protects the how NOT the what. If you have...

Can I trademark my name to remove unsavory news articles?

A trademark is used to identify a good or service in commerce. So that is the only way to protect the name.

You are free to review other's products or services of course. Using their content however to do so can be a big problem. For example, using their...

It sounds like you need to get a proper written assignment. Once you have then you can register the copyright with the US Copyright Office....

Can I commission the reproduction of an antique functioning firearm from a proper seller since the patent for it was from 1894?

As noted, patent concerns will not be an issue, but there may be trade dress or trademark issues. Before you commit to anything, I suggest that...