|Class Numbers & Titles | Class Numbers Only | USPC Index | International | HELP|
|You are viewing a USPC Schedule.|
|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|
|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|
|219||And identified inorganic electron acceptor (developer), other than mere clay|
|221||Fluoran or derivative|
|225||Identified electron acceptor (developer)|
|226||Spatial relationship specified between color-former and developer|
|227||HAVING PLURAL INTERACTIVE LEAVES|
|FOREIGN ART COLLECTIONS|
|FOR000||CLASS-RELATED FOREIGN DOCUMENTS|
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