Footwear with a sole provided with a damper device
Patent 5794361 Issued on August 18, 1998. Estimated Expiration Date: 
June 19, 2016. 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 19, 2016. 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 1145533 2488382 Footwear having improved shock absorption Air cushion shoe sole Shock absorbing device Shoe sole with randomly varying support pattern Shoe or boot provided with tank chambers Athletic shoe having air bladder pressure indicating means Patent #: 5588227 InventorAssigneeApplicationNo. 665911 filed on 06/19/1996US Classes:36/29, Pneumatic36/35BPneumaticExaminersPrimary: Kavanaugh, TedAttorney, Agent or FirmForeign Patent References
International ClassesA43B 013/20A43B 021/28 Foreign Application Priority Data1995-06-20 ITAbstractA footwear with its sole provided with a damper device, comprising a first reservoir with deformable but inextensible walls and containing a substantially incompressible fluid, in a position interposed between a plantar and a tread of said sole; a second reservoir, in contact with the first reservoir, with deformable but inextensible walls and containing a substantially compressible fluid, and a third reservoir with deformable but inextensible walls, which communicates with the first reservoir via a first passage of adjustable cross-section. | |
