Toy archery set
Patent 5224464 Issued on July 6, 1993. Estimated Expiration Date: 
October 28, 2011. 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.
October 28, 2011. 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 ReferencesInventorsAssigneeApplicationNo. 783572 filed on 10/28/1991US Classes:124/67, Within cylinder having diameter larger than projector barrel124/16SPRINGExaminersPrimary: Yu, MickeyAttorney, Agent or FirmInternational ClassesF41B 011/14F41B 007/00 F41B 007/07 AbstractA toy archery set comprising a bow; a barrel rigidly attached to the bow; a movable plunger which has finger grooves and is longitudinally disposed within the barrel; a spring operably coupled to the plunger and to the barrel providing a projecting force either directly or through a pneumatic cylinder; and an arrow constructed of foam having fletching, a tip designed to adhere to a target, and a means to attach the arrow to the bow.Field of SearchCrossbowBow Applied to intermediate projectile-engaging member By spring-driven plunger Within cylinder having diameter larger than projector barrel By plunger moving within cylinder Having projectile supply To create surge of pressure And projector or launcher Resiliently biased projector Including means to retain resilient propulsion member in stressed condition Including variable-size fluid chamber to move fluid | |
