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Class Numbers & Titles | Class Numbers Only | USPC Index | International | HELP |
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Class 503 | RECORD RECEIVER HAVING PLURAL INTERACTIVE LEAVES OR A COLORLESS COLOR FORMER, METHOD OF USE, OR DEVELOPER THEREFOR |
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200 | HAVING A COLORLESS COLOR-FORMER, DEVELOPER THEREFOR, OR METHOD OF USE |
201 | Method of use, kit, or combined with marking instrument or organ |
202 | Color developed by mere decomposition of color-former |
203 | Duplicating master |
204 | Plural colors or plural diverse systems |
205 | Having a color desensitizer |
206 | Component noncoextensive with substrate |
207 | Having nonreactant particles of defined size |
208 | Having constituent defined in terms of melting temperature |
209 | Having nonchromogenic liquid spread-control or transfer-improving agent or component, color modifier, stabilizer or preservative |
210 | Heavy metal reactant |
213 | Identified solvent or dispersant for color-former, other than mere mineral oil |
214 | Identified reactant isolating material or capsule wall material or binder resin |
216 | Identified organic electron acceptor (developer) other than phenolic resin |
218 | Identified color-former |
219 | And identified inorganic electron acceptor (developer), other than mere clay |
220 | Furanone moiety-containing |
223 | Azole moiety-containing |
224 | Polyphenylmethane moiety-containing |
225 | Identified electron acceptor (developer) |
226 | Spatial relationship specified between color-former and developer |
227 | HAVING PLURAL INTERACTIVE LEAVES |
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FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
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