Roadway/traffic delineator
Patent 4092081 Issued on May 30, 1978. Estimated Expiration Date: 
May 30, 1995. 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.
May 30, 1995. 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 2774323 3212415 3371647 3502007 3709112 3820906 InventorAssigneeApplicationNo. 812643 filed on 07/05/1977US Classes:404/10YieldingExaminersPrimary: Byers, Nile C.Attorney, Agent or FirmInternational ClassE01F 009/00AbstractA post designed for sign or guide marker use having sufficient longitudinal rigidity to withstand a force driving it into the ground and sufficient elasticity to permit nondestructive deformation upon impact by a moving object, with subsequent restoration to an original, upright position. Various construction materials and/or structural configurations are disclosed for obtaining this dual character without incurring high production and material costs. | |
