No; registration is not required for protection.
Your problem isn't as much with copyright as it is with trademark. The images you describe (Disney, MLB, NFL, NBA etc logos) are, in all likelihood, trademarked to their respective companies and while a copyright infringement might be overlooked a trademark must be "vigorously defended" or the owner risks losing control of the mark.
It depends on the nature of the presentation, and how the images fit in. If the use of the images is transformative, that would be covered under copyright law (for example, if your presentation is for educational purposes, and is discussing use of color in corporate logos, including the logos would be defensible under fair use). But using an unlicensed stock photo of a man breaking a pencil to illustrate a presentation on workplace stress is likely to be found to be infringing.
AnswerNo. All NFL logos are protected by, in some cases, both trademark and copyright law.
Logos used to identify companies are usually protected by copyright. The answer to how to use a logo in a sentence is... you don't. Spell out the company name within a sentence or headline and use the logomark elsewhere as support.
as long as said company has permission or owns copyright then it is legal otherwise it is infringing on copyright
As an image, a logo is automatically protected by copyright as soon as it is fixed in a tangible medium. If you want to use it in commerce, you may wish to register it as a trademark.
Materials are not required to have a notification on them in order to be protected.
No, you cannot use company logos on your website without permission as it may violate copyright laws and intellectual property rights. It is important to obtain proper authorization before using any company logos to avoid legal consequences.
To use copyrighted images legally and ethically in an educational context, you should obtain permission from the copyright holder, use images that are in the public domain, or utilize images under fair use guidelines. Make sure to properly attribute the images and follow any usage restrictions set by the copyright holder.
No, Getty Images are not free for personal use. They are protected by copyright and require a license for any type of use, including personal use.
No. Unless a "fair use" exception applies use of someone elses copyrighted property without permisson is the definition of copyright infringement.
It is an image that has been put as copyright. This means others may not use this image without permission, or legal action can be taken.