Lines with other classes and within this classA. LINES WITH AND SEARCH NOTES TO COMPOUND, COMPOSITION, AND MATERIAL CLASSES. 1. A compound, per se, is classified in a compound class regardless of utility. See References to Other Classes below for an example of a class for inorganic compounds and nonmetallic elements having a Class 429 utility 2. A composition or material, per se, (except for electrolyte) for Class 429 subject matter is classified in the appropriate composition or material class. Further, a Class 429 article or product mentioned by name only (except for separator) without any inclusion of structure and defined only in terms of its composition or material is classified in the appropriate composition or material classes, particularly those listed below in References to Other Classes. The rules for determining Class placement of the Original Reference (OR) for claimed chemical compositions are set forth in the Class Definition of Class 252 in the section LINES WITH OTHER CLASSES AND WITHIN THIS CLASS, subsection COMPOSITION CLASS SUPERIORITY, which includes a hierarchical ORDER OF SUPERIORITY FOR COMPOSITION CLASSES. a. The following guidelines are to be followed in determining whether structure is present in any of the named subject matter: (1) A recitation of any numerical dimension of the product is deemed structure; (2) a product composed of two or more layers is deemed structure; (3) randomly disposed pores or cells in a porous, cellular or foamed product is deemed structure; and (4) internal characteristics such as crystalline form, molecular orientation, etc., is not considered structure. b. Once the determination has been made that structure exists in the composition or material noted above and it is singly disclosed or claimed for a battery, the patent is classified in this class (429). B. LINES AND SEARCH NOTES TO ARTICLE OR PRODUCT CLASSES 1. As a general rule an article is classified, the class providing specifically for the same or a generic class which can take the same. An exception to this rule is an article mentioned in name only and defined in terms of its composition or material is classified in one of the composition or material classes. (See "Lines With And Search Notes To Compound, Composition, And Material Classes," 2, above, and References to Other Classes associated with the above section.) This class (429) provides for a battery combination comprising a casing, electrodes and a separator. Also various subcombinations of the above. Usually the application or use of a current-producing device (battery) in combination with other devices is classified in appropriate classes. See References to Other Classes, below. C. LINES WITH AND SEARCH NOTES TO PROCESS AND APPARATUS CLASSES See References to Other Classes below. D. LINES BETWEEN CLASS 429, CLASS 204, AND CLASS 205 Wherein structure or process is common to both classes, the following line is to be observed. Where combined subject matter of both Class 204 and Class 429 is claimed or disclosed, classification will be based on the proximate function, e.g., current production, (Class 429) and the production of a product (Class 204). Generic claims are to be classified in the generic class (204). Also see the Search Class notes below to Class 204 and Class 205. | 
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