Copyleft Clause Samples

The Copyleft clause is a licensing provision that requires derivative works of a software or creative work to be distributed under the same license terms as the original. In practice, this means that if someone modifies or builds upon the original work, they must also make their modifications available under the same open-source license, ensuring that the freedoms to use, modify, and share are preserved. This clause is commonly found in licenses like the GNU General Public License (GPL) and is designed to prevent proprietary restrictions from being imposed on derivative works, thereby maintaining the openness and collaborative nature of the original project.
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Copyleft. GlassHouse represents and warrants that it shall not incorporate or commingle intellectual property that constitutes open source code governed under a license that effects Copyleft or any similar or broader license, such as a General Public License, in the development, installation or support of any Deliverable.
Copyleft. The Licensor grants to the End User the License defined under section 2 under the sole condition that any derivative work, product, services, scientific developments of any kind or any improvement or modification of any kind based on all or part of the Corpus shall become part of the Corpus and subject to the License terms herein. A copy of any modification of the Corpus shall be submitted to the Licensor at the following address: ▇▇-▇▇▇▇-▇▇▇▇▇▇▇-▇▇▇-▇▇▇▇▇@▇▇▇-▇▇▇▇.▇▇▇. The End User shall ensure that, in the event of a modification of the Corpus, the substance of the Material is not altered and that, the facility still operates, and performs whatever part of its purpose remains meaningful. Any violation of this clause will give rise to immediate legal prosecution.
Copyleft. With two exceptions, Prototypes and Applications, contribute all changes and additions you make to this software, as well as all software that invokes this software’s functionality. When in doubt, contribute.
Copyleft. Copyleft is a broad term used to describe anything but copyright.