What do i need to do to copyright a mobile application

I'm note where to start here as you managed to conflate a number of legal concerns in two sentences. Regards to open source, as noted, you need to...

Protecting a new mobile application

I appreciate the question, but there are far too many factors and legal considerations to cover here. Let me say that you cannot protect an...

Yes, in all likelihood this would not pose a problem. Any patent on the patent is expired upon your purchase. Copyright would not really apply...

As long as I give ref. to the source of information I am using, can I legally use tidbits of info without seeking permission?

Yes, you can quote mere facts, data and stats and no source reference is required. You would include that to lend credibility to your statements....

If an animal takes a picture of a copyrighted picture is the new picture copyrighted

As Attorney Ballard notes, this does not obviate potential copyright infringement. Best regards, Frank Natoli-Lapin, LLC

Is it illegal to have a publicly shared folder on google drive with your old college course material?

Of course. At the end of the day, they are not your materials right? I would have thought that the college retained the rights, but I suppose their...

I want to open a shop, like an arcade, but with various TV and game consoles. Is this legal?

I agree with Attorney Urbanczyk. There are a number of things to consider here and I think your starting point is going to be consulting IP counsel...

How do I know if both video and music of an old film listed as Public Domain can be used freely?

There is no one way to approach this. First, we need to consider when the work was made and look at the state of copyright law at that time. Was...

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Can I sue AMAZON for selling me an illegal item when I was not aware and there was no disclaimer stating such thing for CA?

Look, Amazon is not responsible in such a case. Not everything you purchase in one state will be legal in another and ultimately it is for you to...

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Can I publish a book which will contain quotes from famous people?

As noted, this has been asked a number of times and you can look at the link provided by Attorney Ballard for a number a excellent answers....