Look, Nike is not policing their mark for this kind of use. No one will likely know or care about your class shirts. But the fact that you have...

Do you need to get a license or permission to promote a companies product in a product you produce?

You are free to use another trademark descriptively in text. For example, when a restaurant notes in its menus that it sells Coke or Pepsi it uses...

If a public domain has been republished would restrictions be written somewhere. Example republishing Peter Pan.

As noted, if it is truly in the public domain, a fact you really need to verify before investing in, then it would be free for anyone to use. Any...

Ultimately, if it is for purely personal use it would not be considered actionable infringement as any court would consider it de minimis...

Data base. We used a company in FL to take registration for our education seminar. We have no written contract.

Without anything in writing they probably have a good argument regards to the data and client lists because it sounds as if they as the marketing...

Can I sue for unauthorized use of a picture of me?

Just based on the facts presented here, I would conclude that you gave permission for the employer to take and use the photo and no continued...

Fan art poster designed by me yet based off a famous design.. Can I sell it?

First and just to be clear, "fan art" is just another way of saying moderately tolerated copyright infringement. You received some good answers and...

Using quotes will generally be permitted. This is largely because using what amounts to a very small portion of a much larger body of work will not...

I think Attorney Ballard offer a nice answer. In all likelihood the kind of protection you are seeking over them is just not possible given that...

Do I need an intellectual property lawyer

As noted, recipes are typically treated as trademark secrets which requires some proactive measures on your part to ensure that any court would...