Horology: time measuring systems or devices – With calendar indicator
Reexamination Certificate
2007-02-13
2009-02-17
Leon, Edwin A. (Department: 2833)
Horology: time measuring systems or devices
With calendar indicator
C368S035000
Reexamination Certificate
active
07492669
ABSTRACT:
A timepiece is provided with a calendar mechanism having a first date indicator for indicating a units position of a date and a second date indicator for indicating a tens position of the date. The first date indicator has a drive cam for rotating the second date indicator and determining a position of the second date indicator. The second date indicator includes a first date character indicating face having numerals “1”, “2”, “3”, and “0”, and a second date character indicating face having a fan-like shape and including four pieces of trapezoidal-shaped portions formed by a pitch interval of (2*360/31) degrees through (3*360/31) degrees, three pieces of notched portions formed by a pitch interval of (2*360/31) degrees through (3*360/31) degrees, and a set of numerals comprising a numeral of “1”, a numeral of “2”, a numeral of “3”, and a numeral of “0”.
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patent: 7180829 (2007-02-01), Watanabe
patent: 7254094 (2007-08-01), Watanabe
Adams & Wilks
Leon Edwin A.
Phan Thanh S
Seiko Instruments Inc.
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