US3230435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lock-out device
Assignee: Ampex Corp
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Filing: 1964-02-03
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Granted: 1966-01-18
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Expires: 1984-02-03
Abstract
No abstract record available.
Inventors
- 👤 William F Andrews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:22
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/46; G11B15/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN A RECORDER HAVING A MOVABLE RECORDING MEDIUM, THE COMBINATION COMPRISING: MOTOR MEANS FOR MOVING SAID RECORDING MEDIUM; SAID MOTOR MEANS COUPLED TO THE RECORDING MEDIUM TO DRIVE SAID RECORDING MEDIUM; MEANS FOR ENERGIZING SAID MOTOR MEANS OPERATIVELY COUPLED TO SAID MOTOR MEANS; MEANS FOR DE-ENERGIZING SAID MOTOR MEANS OPERATIVELY COUPLED BETWEEN SAID MOTOR MEANS AND SAID MEANS FOR ENERGIZING; FIRST CIRCUIT MEANS OPERATIVELY COUPLED VIA SAID MEANS FOR DE-ENERGIZING TO SAID MOTOR MEANS FOR SENSING WHEN SAID MOTOR MEANS HAS BEEN DE-ENERGIZED AND FOR TRANSMITTING A VOLTAGE AS A RESULT OF SENSING THE DE-ENERGIZATION; AND
Claim 2
Dependent Claim
96 words
IN A RECORDER HAVING A MOVABLE RECORDING MEDIUM, THE COMBINATION COMPRISING: MOTOR MEANS FOR MOVING SAID RECORDING MEDIUM; SAID MOTOR MEANS COUPLED TO THE RECORDING MEDIUM TO DRIVE SAID RECORDING MEDIUM; MEANS FOR ENERGIZING SAID MOTOR MEANS OPERATIVELY COUPLED TO SAID MOTOR MEANS; MEANS FOR DE-ENERGIZING SAID MOTOR MEANS OPERATIVELY COUPLED BETWEEN SAID MOTOR MEANS AND SAID MEANS FOR ENERGIZING; FIRST CIRCUIT MEANS OPERATIVELY COUPLED VIA SAID MEANS FOR DE-ENERGIZING TO SAID MOTOR MEANS FOR SENSING WHEN SAID MOTOR MEANS HAS BEEN DE-ENERGIZED AND FOR TRANSMITTING A VOLTAGE AS A RESULT OF SENSING THE DE-ENERGIZATION; AND
References Cited (Backward Citations)
US3044725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |