US3225536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric clock
Assignee: Individual
•
Filing: 1962-10-15
•
Granted: 1965-12-28
•
Expires: 1982-10-15
Abstract
No abstract record available.
Inventors
- 👤 Reich Robert Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:34
CPC Classifications
G; G04; G04C; G04C3/00; G04C3/04; G04C3/06; G04C3/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
IN AN ELECTRONIC CLOCK HAVING A CLOCK DRIVING MECHANISM INCLUDING AN OSCILLATORY ACTUATING AND FORCE TRANSMISSION ELEMENT FOR DRIVING THE SAID MECHANISM, THE COMBINATION COMPRISING: A TRANSISTOR; A DRIVING COIL CONNECTED TO THE EMITTER COLLECTOR PATH OF SAID TRANSISTOR; A FEEDBACK LOOP CONNECTED TO THE BASE ELECTRODE OF SAID TRANSISTOR AND INCLUDING A CAPACITOR AND A SECOND COIL COUPLED TO SAID DRIVING COIL SO AS TO DEFINE A BLOCKING OSCILLATOR; MEANS INCLUDING CONTROLLABLE IMPEDANCE MEANS INDEPENDENT OF THE COILS IN THE COLLECTOR CIRCUIT OF SAID TRANSISTOR AND CONNECTED TO SAIDBASE ELECTRODE FOR PERIODICALLY ENABLING TO AND DISABLING SAID OSCILLATOR AT A RATE CORRESPONDING TO THE RATE OF OSCILLATION OF SAID MECHANISM; AND ARMATURE COOPERATING WITH SAID DRIVING COIL AND CONNECTED TO SAID ELEMENT FOR ACTUATION OF SAID MECHANISM IN RESPONSE TO DRIVING PULSES IN SAID DRIVING COIL.
Claim 2
Dependent Claim
137 words
IN AN ELECTRONIC CLOCK HAVING A CLOCK DRIVING MECHANISM INCLUDING AN OSCILLATORY ACTUATING AND FORCE TRANSMISSION ELEMENT FOR DRIVING THE SAID MECHANISM, THE COMBINATION COMPRISING: A TRANSISTOR; A DRIVING COIL CONNECTED TO THE EMITTER COLLECTOR PATH OF SAID TRANSISTOR; A FEEDBACK LOOP CONNECTED TO THE BASE ELECTRODE OF SAID TRANSISTOR AND INCLUDING A CAPACITOR AND A SECOND COIL COUPLED TO SAID DRIVING COIL SO AS TO DEFINE A BLOCKING OSCILLATOR; MEANS INCLUDING CONTROLLABLE IMPEDANCE MEANS INDEPENDENT OF THE COILS IN THE COLLECTOR CIRCUIT OF SAID TRANSISTOR AND CONNECTED TO SAIDBASE ELECTRODE FOR PERIODICALLY ENABLING TO AND DISABLING SAID OSCILLATOR AT A RATE CORRESPONDING TO THE RATE OF OSCILLATION OF SAID MECHANISM; AND ARMATURE COOPERATING WITH SAID DRIVING COIL AND CONNECTED TO SAID ELEMENT FOR ACTUATION OF SAID MECHANISM IN RESPONSE TO DRIVING PULSES IN SAID DRIVING COIL.
References Cited (Backward Citations)
US1514751A
Cited
US2708720A
Cited
US2909732A
Cited
US2905904A
Cited
US2877399A
Cited
US3100278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |