Clock
Patent 4759002 Issued on July 19, 1988. Estimated Expiration Date: 
November 24, 2007. 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.
November 24, 2007. 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 ReferencesInventorApplicationNo. 07/124671 filed on 11/24/1987US Classes:368/15, ASTRONOMICAL368/16, With sun, earth, and moon display368/17, With sun and earth display368/221, For rotatable disk dial type368/223, DISPLAYS OR DISPLAY DEVICE DETAILS968/207Clocks or watches with indicators for tides, for the phases of the moon, or the like (planetaria G09B 27/00 -27/06; arrangements for table reference, e.g., menstrual tables, etc., G06C 3/00) [G04B 19/26]ExaminersPrimary: Roskoski, BernardAttorney, Agent or FirmInternational ClassesG04B 19/00 (20060101)G04B 19/26 (20060101) AbstractA clock having a housing which contains two internal disks and a motor for rotation of those disks on a shaft is disclosed. An hour disk is provided having a shaded region representing night and an unshaded region representing day. The hour disk is positioned to appear through a opening in the clock face. The face of the clock may have one or more openings to expose the minute and hour disks. One of the openings has a numerical representation of hours provided on the clock face there around. The clock is arranged so that the line separating the dark and light regions of the hour disk indicates the hour of day by pointing to a number on the face, and also graphically represents the amount of time from and to the previous and next sunrise or sunset.Other References
Field of SearchASTRONOMICALWith navigational display With sun and earth display With moon and earth display Including illumination means With movable belt display With movable drum display With tide display With manually actuated display With movable disk display PLURAL TIME ZONES With sun, earth, and moon display With a world globe DISPLAYS OR DISPLAY DEVICE DETAILS Dial or hand Of rotatable disk type Translucent For rotatable disk dial type | |
