Patent US3495151A successfully refreshed from Google Patents.
US3495151A
Expired / Lapsed
US
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Memory control circuit for clutching,braking and reversing a motor
Assignee: AT&T Teletype Corp
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Filing: 1968-04-29
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Granted: 1970-02-10
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Expires: 1988-04-29
Abstract
No abstract record available.
Inventors
- 👤 Mark A Hutner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:49
CPC Classifications
H; H02; H02P; H02P29/00; H02P29/0016; G; G11; G11B; G11B15/00; G11B15/02; G11B15/18; G11B15/26; G11B15/28; G11B15/29; G11B15/46; G11B15/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2574218A
Cited
US3217993A
Cited
US3353007A
Cited
US3322896A
Cited
US3206133A
Cited
US3230435A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |