Toothpaste-dispensing toothbrush
Patent 6685375 Issued on February 3, 2004. Estimated Expiration Date: 
September 4, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 4, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3417762 Dentifrice dispensing toothbrush with refillable cartridge Dentifrice dispensing toothbrush device Fluid-dispensing and refilling system for a power toothbrush Patent #: 6220772 InventorApplicationNo. 234953 filed on 09/04/2002US Classes:401/176, Slidable piston401/179, Including mechanical-movement actuator401/270With flow-regulatorExaminersPrimary: Nguyen, Tan T.Foreign Patent References
International ClassB43K 005/06AbstractA replaceable toothpaste-dispensing toothbrush is a device designed to combine a toothbrush head with a housing for toothpaste. This combination includes a mechanism for passing g the toothpaste from the housing to the bristles on the toothbrush. The user is thus enabled to easily transport all elements of teeth cleaning. A circular spring-loaded snapping mechanism for mounting disposable brush heads. Also incorporated is a toothpaste injector that seals in the unused toothpaste. Finally a cartridge loading, piston driven dispensing mechanism is introduced in the present invention.Field of SearchIn or at feederPiston in cylinder Intercommunicable reservoirs or reservoir sections in series Piston-provided reservoir Slidable piston In reservoir having enlarged bore portion Including flow-regulator through piston Including mechanical-movement actuator Including disengageable or extensible operating rod With flow-regulator Including feeder Elongated perforated tube transverse of tool elements Feeder terminates among tool elements | |
