A work based on another work is called a derivative work. Examples would be taking a photo of a painting, setting a poem to music, or adapting a novel into a screenplay.
No, a copyright date is the first date of publication and an imprint date can be many years later, e.g., a later edition based upon the original copyright date.
Disposition of copyright should have been agreed upon in the commissioning agreement.
Copyright applies automatically as soon as a work of sufficient originality is fixed in a tangible medium.
In general, copyright law does not protect ideas or concepts, but rather the expression of those ideas. However, if your story concept is expressed in a tangible form, such as a written outline or synopsis, it may be eligible for copyright protection as a literary work. To secure copyright, you do not need to formally register your work, as copyright protection is automatic upon creation. It is advisable to mark your work with a copyright notice (e.g., "Copyright [year] [your name]") and consider registering it with your country's copyright office for additional legal protection if desired.
The five basic rights of a copyright owner include the right to reproduce the work, distribute copies of the work, publicly display the work, publicly perform the work, and create derivative works based on the original work. These rights are granted to the copyright owner upon creation of the work and can be enforced to protect their exclusive ownership and control over the work.
Copyright exists upon creation of a work; any copies leaving the creator's control should contain a copyright notice, but the work does not have to be registered immediately. Registration must be made before filing any form of civil action for infringement.
Works of sufficient creativity are automatically protected as soon as they are fixed in a tangible medium, and DeviantArt's copyright policy is based on this.
Conclusions are based upon prior research and evidence gathered. In a written work, a conclusion will be preceded or followed by the research upon which that conclusion is based.
No. I believe this would fall under the right "To prepare derivative works based upon the work." Which is reserved and protected. However, this needs to be looked at by a copyright lawyer for a definitive answer.
Unlike the patent process, there is no examination process in copyright registration. However, based on the dates of the two copyrights, the rightsholder of the first work could easily sue the rightsholder of the second work for infringement.
If the painting is still protected by copyright, you would need a license to create a derivative work.
No, there is no copyright on anything that old. In addition, the mere ownership of a copy of something (including the original art "copy") has no bearing upon the ownership of the copyright. Copyright ownership is derived exclusively from authorship. This raises interesting questions when a painter doesn't own the paints and canvas upon which he paints, and was commissioned to create a new work to the specifications of a patron.