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Patent US3714773A successfully refreshed from Google Patents.
US3714773A
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Amplitude control means for balance wheel oscillator
Assignee: Timex Group USA Inc
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Filing: 1971-11-01
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Granted: 1973-02-06
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Expires: 1991-11-01
Abstract
Abstract A MEANS FOR CONTROLLING THE AMPLITUDE OF BALANCE WHEEL OSCILLATORS USED IN TIMEPIECES WHICH COMPRISES PREDETERMINED SEMICONDUCTOR DEVICES CONNECTED IN PARALLEL ACROSS THE DRIVING COIL OF AN OSCILLATOR. THE SEMICONDUCTOR DEVICE WHICH MAY, FOR EXAMPLE, COMPRISE A DIODE IS MOUNTED ON A COIL-CARRYING BALANCE WHEEL IN A SIMPLE AND EXPEDITIOUS MANNER. THIS ARRANGEMENT WHEN EMPLOYED IN A TIMEPIECE HAVING MECHANICAL CONTACTS ALSO MINIMIZES CONTACT WEAR.
Inventors
- 👤 G Diersbock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:46
CPC Classifications
G; G04; G04B; G04B17/00; G04B17/20; G04C; G04C3/00; G04C3/04; G04C3/06
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 |