Deflecting spring caster
Patent 6539578 Issued on April 1, 2003. Estimated Expiration Date: 
June 15, 2020. 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.
June 15, 2020. 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. 594034 filed on 06/15/2000US Classes:16/44Spring supportedExaminersPrimary: Mah, Chuck Y.Attorney, Agent or FirmInternational ClassA47B 091/00AbstractA wheel mount assembly for a spring-loaded caster in which a resilient deflecting member serves to mount a wheel supporting lever to a support for deflection to provide relative movement of the lever under varying loads. | |
