US3332229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric clock self-starter
Assignee: Hamilton Watch Co
•
Filing: 1964-05-11
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Granted: 1967-07-25
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Expires: 1984-05-11
Abstract
No abstract record available.
Inventors
- 👤 John L Klinck
- 👤 John A Van Horn
- 👤 Richard T Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:42
CPC Classifications
G; G04; G04C; G04C3/00; G04C3/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
215 words
A WATCH COMPRISING A GROUNDED PILLAR PLATE AND A BALANCE COCK, A BALANCE STAFF HAVING ONE END JOURNALED IN SAID PILLAR PLATE AND ITS OTHER END JOURNALED IN SAID BALANCE COCK, A BALANCE WHEEL ON SAID BALANCE STAFF. A HAIRSPRING ENGAGING SAID BALANCE STAFF FOR SUPPORTINF OSCILLATIONS OF SAID BALANCE WHEEL, A PIE-SHAPED DRIVE COIL CARRIED BY SAID BALANCE WHEEL, ONE END OF SAID COIL BEING ELECTRICALLY CONNECTED TO SAID BALANCE WHEEL, AT LEAST ONE PERMANENT MAGNET POSITIONED ADJACENT THE PATH OF MOVEMENT OF SAID DRIVE COIL WHEREBY THE FIELDS FROM SAID COIL AND MAGNET INTERACT TO IMPART A THRUST TO SAID COIL AND BALANCE WHEEL, MEANS ELECTRICALLY COUPLING SAID BALANCE STAFF TO SAID PILLAR PLATE, A BATTERY, MEANS COUPLING ONE SIDE OF SAID BATTERY TO SAID PILLAR PLATE, A ROLLER ON SAID BALANCE STAFF, AN INSULATED CONTACT CARRIED BY SAID ROLLER, MEANS ELECTRICALLY COUPLING SAID INSULATED CONTACT TO THE OTHER END OF SAID DRIVE COIL, A YIELDABLE CONTACT ENGAGEABLE BY SAID INSULATED CONTACT DURING OSCILLATION OF SAID BALANCE WHEEL TO COMPLETE A CIRCUIT FROM SAID OTHER END OF SAID DRIVE COIL TO THE OTHER SIDE OF SAID BATTERY, AND A STARTING CIRCUIT INCLUDING A CAPACITOR BYPASSING SAID CONTACTS AND COUPLING SAID OTHER END OF SAID DRIVE COIL TO SAID OTHER SIDE OF SAID BATTERY.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |