Patent US4085575A successfully refreshed from Google Patents.
US4085575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital electronic timepiece
Assignee: Seiko Instruments Inc
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Filing: 1976-09-21
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Granted: 1978-04-25
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Expires: 1996-09-21
Abstract
Abstract A digital electronic timepiece has numeric display means for selectively displaying the time and a number representing the day of the week. In one position of a display selection switch, the display means displays hours and minutes. In another position of the display selection switch, the date and a number representing the day of the week are displayed by the same display elements as those displaying time. Display indicators controlled by the display selection switch indicate what is displayed by the display means.
Inventors
- 👤 Kojiro Tanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:50
CPC Classifications
G; G04; G04G; G04G9/00; G04G9/08; G04G9/087; G04G9/085
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
107 words
A digital electronic timepiece displaying the time and the day of the week, comprising a numeric display means for selectively displaying only numbers, said display means comprising a plurality of display elements each of which comprises means for selectively displaying a digit, display selecting means controlling said display means to display the time and alternatively to display a number representing a day of the week, said number representing a day of the week being selectively displayed by one of the same display elements as used for displaying time, and means coordinated with said display selecting means to indicate whether time or day of the week is displayed.
Claim 2
Dependent Claim
107 words
A digital electronic timepiece displaying the time and the day of the week, comprising a numeric display means for selectively displaying only numbers, said display means comprising a plurality of display elements each of which comprises means for selectively displaying a digit, display selecting means controlling said display means to display the time and alternatively to display a number representing a day of the week, said number representing a day of the week being selectively displayed by one of the same display elements as used for displaying time, and means coordinated with said display selecting means to indicate whether time or day of the week is displayed.
Claim 3
Dependent Claim
52 words
A digital electronic timepiece according to claim 1, in which said display means comprises four display elements for displaying hours and minutes in one condition of said display selecting means and for displaying the date and a number representing the day of the week in another condition of said display selecting means.
Claim 4
Dependent Claim
40 words
A digital electronic timepiece according to claim 2, in which said indicating means comprises means apart from said numeric display means and controlled by said display selecting means for displaying indicia indentifying what is displayed by said numeric display means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-24 | 1981-10-24 | 1982-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-24 | 1985-10-24 | 1986-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-24 | 1989-10-24 | 1990-04-25 | $7700.00 | Window Closed / Lapsed |