Railway tongue and rail juncture
Patent 5451018 Issued on September 19, 1995. Estimated Expiration Date: 
December 23, 2013. 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.
December 23, 2013. 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 580071 817365 884717 932010 1000233 1059189 1301099 1848363 2377273 Grooved rail switch with a tongue rail device InventorsAssigneeApplicationNo. 171477 filed on 12/23/1993US Classes:246/442, Tongue246/436, Recessed rail246/437, Renewable and reenforced246/443Bed lockExaminersPrimary: Le, Mark T.Attorney, Agent or FirmForeign Patent References
International ClassE01B 007/00Foreign Application Priority Data1992-12-24 DEAbstractA railway tongue and junction rail assembly including a mounting fixed to the junction rail. The tongue abuts the junction rail at an inclined junction and is releasably secured within the mounting with the mounting being the sole means of joining the tongue to the junction rail. | |
