Teaching and advertising tool
Patent 5641289 Issued on June 24, 1997. Estimated Expiration Date: 
May 22, 2015. 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 22, 2015. 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 1533437 1592034 2125871 2283777 2397272 InventorApplicationNo. 447269 filed on 05/22/1995US Classes:434/236, PSYCHOLOGY283/46, LANGUAGE434/365, MEANS FOR DEMONSTRATING APPARATUS, PRODUCT, OR SURFACE CONFIGURATION, OR FOR DISPLAYING EDUCATION MATERIAL OR STUDENT'S WORK434/433MISCELLANEOUSExaminersPrimary: O'Connor, Cary E.Assistant: Smith, Jerry Foreign Patent References
International ClassG09B 019/00AbstractTool for enhancing interest in and memory retention of visual alphanumeric text message presentations comprising arrays of a multiplicity of immediately visible and comprehensible text messages that are readable both as conventional two-dimensional printed text messages and as perceived three-dimensional text messages with component words floating in space at various distances from the viewer, through stereoscopic parallax. Methods for preparing such a tool and its constituent text-forms, and arrays. | |
