Liquid crystal film laminate
Patent 4310577 Issued on January 12, 1982. Estimated Expiration Date: 
August 24, 1999. 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.
August 24, 1999. 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 3533399 3585381 3600060 3620889 3661142 3697297 3872050 Method of locating vein Transferable color changeable applique Chiropractic analytic technique with a liquid crystal sheet InventorsAssigneeApplicationNo. 06/069386 filed on 08/24/1979US Classes:428/1.61, Releasable substrate layer to expose adhesive428/215, Absolute thicknesses specified428/220, Physical dimension specified428/41.5, Polymer derived from material having at least one acrylic or alkacrylic group or the nitrile or amide derivative thereof (e.g., acrylamide, acrylate ester, etc.)428/41.8, Release layer428/480, Of polyester (e.g., alkyd, etc.)428/906ROLL OR COILExaminersPrimary: McCamish, Marion E.Attorney, Agent or FirmInternational ClassesB44C 1/17 (20060101)B44F 1/08 (20060101) B44F 1/00 (20060101) B41M 5/28 (20060101) G01K 11/00 (20060101) G01K 11/16 (20060101) AbstractA liquid crystal film laminate embodies an indicator component and a supportive and protective component removable from the indicator component to provide maximum flexibility and minimum mass in the resulting indicating article. The indicator component includes a liquid crystal film and may include a protective layer and/or an adhesive layer. The film has an outer surface which forms one of two opposite side surfaces on the indicator component. The supportive and protective component includes two release surfaces provided by at least one release sheet, such release surfaces separably contacting respective ones of the indicator component side surfaces in covering relation thereto, for removably supporting and protecting the indicator component. The outer surface of the film thereby is exposed to unobstructed view upon removal of the supportive and protective component, for maximum clarity of the indication given by the film. The maximum total thickness of the indicator component preferably is about 4 mils.Other References
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