English: Betty Boop character design, figure 1 from U.S. patent application D86224 "Design for a Doll or Similar Article". The original drawing was published on 9/24/1931, but my colored and modified version of the drawing was done on 2/4/2015.
I colored the original black and white drawing, and I also altered the drawing a little bit. I lengthened the dress. I made the eyes more symmetrical. I shortened the lengthy eyelashes to model them after a more recent drawing of Betty Boop. I added green irises to the eyes which I modeled after a more recent drawing of Betty Boop. I fixed the unrealistic thicknesses of the knee joints. Lastly, I changed the thigh accessory to make it a heart design.
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 (see 37 CFR 1.71(d) & (e) and 37 CFR 1.84(s), and MPEP § 608.01(e) & (w) and MPEP § 1512):
A portion of the disclosure of this patent document contains material which is subject to (copyright or mask work) protection. The (copyright or mask work) owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all (copyright or mask work) rights whatsoever.
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. (This template can be replaced by {{PD-US-patent-no notice}} in such cases.)