If I co-produced a musical arrangement, am I entitled to "production" credit when filing with the US Copyright Office?

You probably will be considered a joint author for the purposes of copyright law. Music has a technical component with regards to U.S. copyright...

Would publishing a video game featuring a 3x3x3 cube without the colors/puzzle mechanic of Rubik's cube infringe it's copyright?

The issue is would it infringe on copyright, it may or may not it depends upon the concept of look and feel and separate test for a two or three...

“For a graphic design product, am I infringing on trademark if I use a silhouette of someone else's product.

It depends, to a large extent, because there could be trademark and copyright issues involved. Using an exact product of some else without...

Can I use celebrity impressions in youtube videos advertising a small company.

I agree with my counterparts, you would need permission at a bear minimum, unless some exceptions apply, and it doesn't look like they apply in...

I draw a detailed draft of my house plan 4500 heated square feet. Builder draw the blueprint. Who has the copyright ?

Essentially you would. In 1990 Congress enacted the Architectural Works Copyright Protection Act, this essentially added 'architectural works' to...

Prove of date of creation of unpublished designs for copyright infringement : I create a toy design unpublished in my computer.

Yes you could use that to evidence the original authorship. It could potentially also be fall under the category of trade secret misappropriation....

Can the time stamp of a PC document be a copyright

A time stamp could be argued as not meeting the legal requirements of the original authorship created by the author or have any protected...

I have a T-shirt idea that I have never seen done before I want to know legal issues surrounding it.

You could obtain a license and still be permitted to use within the guidelines of a license or permission.

Under Copyright law, can an email of copies of a work be considered publication?

Probably not, given that it is not an original work of expression by the author, but mere copies, unless you are the author.

A U.S. court could render a judgment, but enforcing it is another thing. Sending a DMCA notice is governed by U.S. law even if the event occurs in...