Electrophotographic offset masters
Patent 4520089 Issued on May 28, 1985. Estimated Expiration Date: 
September 19, 2003. 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 19, 2003. 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 ReferencesPolyamide-imide and mica pulp particles and paper-like sheets made therefrom Electrophotographic lithographic printing plate Patent #: 4427754 InventorsAssigneeApplicationNo. 06/533814 filed on 09/19/1983US Classes:430/49, To produce printing surface101/467, By use of radiant energy or heat430/60Product having layer between radiation-conductive layer and base or supportExaminersPrimary: Kittle, John E.Assistant: Goodrow, John Attorney, Agent or FirmInternational ClassG03G 5/10 (20060101)Foreign Application Priority Data1982-09-21 JPAbstractDisclosed is an electrophotographic offset master which contains sericite or sericite-containing inorganic pigment as pigment component in back coat layer. This offset master has no fogging on the photosensitive layer and thus causes no stains on printed copies. |
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