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Original Assignee Amgraf Inc Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
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( en Inventor Huver Hu Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number US10/047,146 Other versions US7196822B2
#CREATE VOID PANTOGRAPH PHOTOSHOP PDF#
Google Patents Security document manufacturing method and apparatus using halftone dots that contain microscopic imagesĭownload PDF Info Publication number US20030038974A1 US20030038974A1 US10/047,146 US4714602A US2003038974A1 US 20030038974 A1 US20030038974 A1 US 20030038974A1 US 4714602 A US4714602 A US 4714602A US 2003038974 A1 US2003038974 A1 US 2003038974A1 Authority US United States Prior art keywords image substrate custom halftone dots values Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US20030038974A1 - Security document manufacturing method and apparatus using halftone dots that contain microscopic images can also provide security label paper, security tags and holograms in any shape or size with any perforation specification, compatible with Laser / Inkjet printers.US20030038974A1 - Security document manufacturing method and apparatus using halftone dots that contain microscopic images 100728 meets the latest Federal Standards for Prescription pad security: sells blank security paper in many colors and with many document security feature options. This paper has a paper weight of 25# and is available in 8.5″ × 11″ sheets only. This material is made of a chemically reactive paper that discolors when print is removed by solvents and the paper has invisible fibers which glow under a UV black light. If the red RX symbols are rubbed they disappear with the heat generated from the rubbing, and the red RX reappears when the rubbing stops and the thermochromatic cools. On the backside there are four RX symbols in each quadrant printed in red thermochromatic ink. On the white backside of 100728, there is an artificial watermark that says "Prescription Security". If attempts are made to remove the laser printing, the paper fibers are destroyed. Also, on the front is a coating that secures the laser printing to the paper. When copied, scanned or faxed in color or black and white the word "VOID" appears in the duplicate. This has a blue screened pantograph background on the front side.