Patent US3587223A successfully refreshed from Google Patents.
US3587223A
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US
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Electronic wrist watch
Assignee: Timex Group USA Inc
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Filing: 1970-04-06
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Granted: 1971-06-28
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Expires: 1990-04-06
Abstract
Abstract AN ELECTRONIC WRIST WATCH INCLUDES A WATCH CASE HAVING THREE COMPARTMENTS. ONE SIDE COMPARTMENT CONTAINS A QUARTZ CRYSTAL, THE CENTRAL COMPARTMENT CONTAINS A BALANCE WHEEL MOVEMENT INCLUDING A DIAL TRAIN DRIVE AND TIME INDICATING HANDS, AND THE OTHER SIDE COMPARTMENT CONTAINS ELECTRONIC CIRCUITRY. A CLEAR GLASS OR PLASTIC CRYSTAL IS POSITIONED OVER THE CENTRAL COMPARTMENT.
Inventors
- 👤 Norman Charles Zatsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:08
CPC Classifications
G; G04; G04F; G04F5/00; G04F5/04; G04F5/06; G04F5/063; G04C; G04C10/00; G04C3/00; G04C3/008
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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |