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First page of U.S. Patent No. 821,393 (Airplane Invention)
The original image is from a United States Patent Office web page located at [1].
[edit] Licensing
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In general, the contents of United States patents are in the public domain.[2]
In specific cases, patent applicants and holders may claim copyright in portions of those documents. In those specific cases, applicants are required to identify the portions that are protected under copyright, and are additionally required to state the following within the body of the application and patent:[3] [4]
The original patent should be checked for the presence of such language before an assumption is made that the contents are in the public domain. |
The nature of the copyrighted work is a digitized image of a U.S. Patent Drawing. U.S. Patent Drawing are not protected by copyright when utilized to illustrate the object in question. The purpose and character of the use of the present image is for nonprofit educational purposes. The amount and substantiality of the portion used in relation to the copyrighted work as a whole is about 100%, and the use will have no effect upon the potential market for or value of the copyrighted work.
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