Patent US3609957A successfully refreshed from Google Patents.
US3609957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive arrangement for timekeeping system
Assignee: General Time Corp
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Filing: 1969-03-27
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Granted: 1971-10-05
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Expires: 1989-03-27
Abstract
Abstract AN IMPROVED DRIVE ARRANGEMENT FOR A TIMEKEEPING SYSTEM. THE DRIVE ARRANGEMENT INCLUDES AN ELECTROSTATIC MOTOR INCLUDING A ROTOR HAVING A DIELECTRIC CIRCUMFERENTIAL SURFACE AND A PAIR OF ELECTRODES OPERATIVELY ASSOCIATED WITH THE ROTOR FOR DRIVING THE VOTOR IN RESPONSE TO D-C POTENTIAL APPLIED ACROSS SAID ELECTRODES. A NUCLEAR BATTERY IS CONNECTED TO SAID ELECTRODES FOR APPLYING A D-C POTENTIAL ACROSS SAID ELECTRODES TO DRIVE SAID ROTOR. THE TORQUE GENERATED BY THE ROTOR IS UTILIZED TO DRIVE A CONVENTIONAL MECHANICAL TIME INDICATING MEANS.
Inventors
- 👤 Frank W Emerson
- 👤 Lincoln J Gosling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:59
CPC Classifications
G; G04; G04C; G04C10/00; G04C1/00
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) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |