You can't "extend" an existing patent. If your improvements are themselves patentable you could try a new patent application.

No. That's not what trademarks "do." Trademarks are words or symbols that identify the source of goods or services to consumers. McDonald's...

GM "congratulated" Lew Alcindor and lost. Abdul-Jabbar v. General Motors Corp. 85 F.3d 407 (9th Cir., 1996) A Chicago based supermarket,...

Good answer above. I'd even say you didn't "buy" anything. You "rented" it. The contract to which you agreed is a license permitting you to use...

There doesn't seem to be an absolute rule to apply because there are too many factual variables. Can you "use" a book? Sure, as long as you don't...

Maybe. It depends on the product, your changes and consumer understanding. Put new wheels on a car and sell as a used car? Probably not a...

PUA seems to have something to do with unemployment not trademark.

I doubt you can unilaterally create a confidentiality contract. That looks like an email footer to put a mistaken recipient on notice not a way...

Two years might be too long. Contact a lawyer right away to look into the statute of limitations for a right of publicity claim.

There are two concerns: (1) copyright (in the photo) and (2) right of publicity (personal right of the people in the photo). "Benefits a...