Ideas can be protected as trade secrets, by contract. Typically an NDA. If the marketing idea is disclosed or becomes obvious is use however, the...

The statute of limitations for copyright infringement is 3 years. Sounds like you may be about 29 years too late.

Can I use a TM that is part of a registered TM?

Probably not. The two goods are related.

Can a Logo be Copyrighted? -- I'm the designer; so, I'm asking about a copyright, not a trademark.

Yes, absolutely. Copyrights subsist in logos if there is a modicum of creativity in the authorship. For example logos comprised of stand-alone...

Question regarding intellectual property...

Fair question. Easy answer: No, there is no "bright-line" % or rule which will guaranty Wizards of the Coast doesn't sue. Most such references...

In CA, would it be legal to Sculpt a bust caricature of Robert Mueller, reproduce & sell it since he is a public official?

This is a question of state law, turning on Mr. Muller's state of residence (possibly the District of Columbia). You would have a better case if...

Do I need to include “Inc” for my business logo, ie website, business cards? In my patients forms I refer to the my business Inc

No, you need not include the "Inc." on business cards, stationary and signage. You do not need to file a "Fictitious Business Name Statement' ...

Great question. The answer is yes, and no. (How's that for a lawyer's answer?) No, because there is generally no written statute of limitations...

I think the type of use you describe would fall under the "fair use" exception of section 107 of the Copyright Act weighing the following 4...

What should i do if merchandise I sold on Ebay was stolen?

One cannot transfer title to stolen property in the U.S, so the Buyer is entitled to a refund and should return the property to you or the police....