Force monitoring shoe
Patent 5269081 Issued on December 14, 1993. Estimated Expiration Date: 
May 1, 2012. 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 1, 2012. 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 1933243 3702999 3731674 3791375 Load signaling device for a patient's foot Flexible force sensor Flexible force sensor Multi-event notification system for monitoring critical pressure points on persons with diminished sensation of the feet Force sensing insole for electro-goniometer Systems for measurement and analysis of forces exerted during human locomotion InventorApplicationNo. 877230 filed on 05/01/1992US Classes:36/136, Shoe attachment (e.g., ornament, pocket, etc.)36/139, Noise maker73/172, ORTHOPEDIC PRESSURE DISTRIBUTION600/592FootExaminersPrimary: Meyers, Steven N.Assistant: Kavanaugh, Ted Attorney, Agent or FirmForeign Patent References
International ClassA61B 005/11AbstractA force monitoring shoe (10) for monitoring the force being applied to a patient's leg, as during walking. The device is contained within a shoe-like enclosure which can be worn by a recuperating injured person. Provision is made, as with a spring, to absorb the shock of the step. When force equal to a selectable value has been applied, an alert system notifies the patient. With this device a recovering patient will know exactly how much weight to place on the leg during every step.Other References
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