Photographic film with magnetic recording track and method of recording on the track and reproduction from the same
Patent 4613911 Issued on September 23, 1986. Estimated Expiration Date: 
December 4, 2004. 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.
December 4, 2004. 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 ReferencesInventorAssigneeApplicationNo. 06/677835 filed on 12/04/1984US Classes:360/3, Motion picture film352/27, Flexible strip type352/37, Picture and sound recorder carries428/900, MAGNETIC FEATURE430/934CINE FILMExaminersPrimary: Lesmes, George F.Assistant: Atkinson, William M. Attorney, Agent or FirmInternational ClassesG03B 31/02 (20060101)G03B 31/00 (20060101) G11B 5/48 (20060101) Foreign Application Priority Data1983-12-06 JPAbstractPhotographic film is provided with a magnetic recording layer applied to at least one edge surface thereof in the longitudinal direction of the film and substantially over the entire thickness thereof. A magnetic head of a recording-reproducing system is positioned upon recording or reproduction so that a magnetic field is established in the direction of thickness of the film or the direction of width of the magnetic recording layer. |
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