Escape/rescue system
Patent 4385586 Issued on May 31, 1983. Estimated Expiration Date: 
September 4, 2001. 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.
September 4, 2001. 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 ReferencesInventorApplicationNo. 06/299560 filed on 09/04/1981US Classes:116/205, By touch340/326, Plural (e.g., concurrent auxiliary) single indications (e.g., light flashes when bell rings)340/331, Periodic or flashing340/407.1, TACTUAL INDICATION340/644, Switch or relay52/174WITH TRAFFIC-GUIDING FEATUREExaminersPrimary: Yasich, Daniel M.Attorney, Agent or FirmInternational ClassesG09F 3/00 (20060101)A62B 3/00 (20060101) G08B 5/36 (20060101) G08B 5/22 (20060101) AbstractAn emergency evacuation path marking system employing a series of devices, each device having the tactile characteristics of shape and surface contacts, in combination, to indicate direction and distance to the nearest evacuation exit; the shape providing direction information and the surface contacts providing distance information. The devices also being capable of luminescence to aid in visual as well as tactile reference. | |
