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US3714867A
Expired / Lapsed
US
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Solid state watch incorporating largescale integrated circuits
Assignee: Hamilton Watch Co
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Filing: 1971-04-29
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Granted: 1973-02-06
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Expires: 1991-04-29
Abstract
Abstract DISCLOSED IS A SOLID STATE WRISTWATCH HAVING NO MOVING PARTS. A CRYSTAL OSCILLATOR SUPPLIES A TIMING SIGNAL THROUGH A BINARY DIVIDER AND DISPLAY ACTUATOR TO AN ELECTRO-OPTICAL DISPLAY IN THE FORM OF A DIGITAL ARRAY OF LIGHT-EMITTING DIODES. THE VAST MAJORITY OF THE ELECTRICAL COMPONENTS OF THE WATCH ARE INCORPORATED IN ONE OR MORE LARGE-SCALE INTEGRATED CIRCUITS. D R A W I N G
Inventors
- 👤 B Dargent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:35
CPC Classifications
G; G04; G04G; G04G9/00; G04G9/0017; G04G9/08; G04G9/10; G04G9/102; G04G9/105; G04G9/107
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |