923. 2(B) Functional Features 37
923.2(C) Building Designs Created Before December 1, 1990 37
923.3 Application Tips for Architectural Works 38
924 Registration Requirements for Useful Articles 38
924.1 What Is a Useful Article? 39
924.2 Separability Tests for Useful Articles 39
924.2 (A) Physical Separability 40
924.2(B) Conceptual Separability 40
924.2(C) Factors Not Relevant in Evaluating Separability 41
924.3 Specific Types of Useful Articles 41
924.3(A) Clothing Designs 41
924.3(A)(1) Fabric and Textile Designs Embodied in Clothing or Other Useful Articles 42
924.3(A)(2) Costumes 42
924.3(A)(3) Decorative Masks 43
924.3(B) Blank Forms 43
924.3(C) Measuring and Computing Devices 44
924.3 (D) X-Rays, Medical Imaging, and Non-Medical Echo Sonography 45
Chapter 900 : 3
12/22/2014
