These are design patents, not utility patents. Chapter 1500 of the MPEP is the relevant reference, and in particular, 1502 distinguishes between design and util

These are design patents, not utility patents. Chapter 1500 of the MPEP is the relevant reference, and in particular, 1502 distinguishes between design and utility patents. > In general terms, a “utility patent” protects the way an article is used and works (35 U.S.C. 101), while a “design patent” protects the way an article looks (35 U.S.C. 171). https://www.uspto.gov/web/offices/pac/mpep/s1502.html https://www.uspto.gov/web/offices/pac/mpep/s1502.html