Patent US3353076A successfully refreshed from Google Patents.
US3353076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor control circuit for a stepping motor
Assignee: Eastman Kodak Co
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Filing: 1964-11-19
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Granted: 1967-11-14
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Expires: 1984-11-19
Abstract
No abstract record available.
Inventors
- 👤 Thomas H Haines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:20
CPC Classifications
H; H02; H02P; H02P8/00; H02P8/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A STEPPING MOTOR ACCELERATION CONTROL SYSTEM COMPRISING: MEANS FOR DETECTING THE RELATIVE DIFFERENCE BETWEEN THE MECHANICAL AND ELECTRIC AND CONDITION OF SUCH MOTOR AND FOR GENERATING A POSITION SIGNAL WHEN SUCH DIFFERENCE IS ONE-HALF STEP; ENCODED MEANS FOR GENERATING A LIMITED SERIES OF STEP SIGNALS PULSES; AND FIRST GATE CIRCUIT MEANS FOR COMPARING THE STEP SIGNAL PULSE WITH THE POSITION SIGNAL AND PASSING EACH STEP SIGNALS PULSE PRESENTED BY SAID ENCODED MEANS ONLY
Claim 2
Dependent Claim
73 words
A STEPPING MOTOR ACCELERATION CONTROL SYSTEM COMPRISING: MEANS FOR DETECTING THE RELATIVE DIFFERENCE BETWEEN THE MECHANICAL AND ELECTRIC AND CONDITION OF SUCH MOTOR AND FOR GENERATING A POSITION SIGNAL WHEN SUCH DIFFERENCE IS ONE-HALF STEP; ENCODED MEANS FOR GENERATING A LIMITED SERIES OF STEP SIGNALS PULSES; AND FIRST GATE CIRCUIT MEANS FOR COMPARING THE STEP SIGNAL PULSE WITH THE POSITION SIGNAL AND PASSING EACH STEP SIGNALS PULSE PRESENTED BY SAID ENCODED MEANS ONLY
References Cited (Backward Citations)
US1957240A
Cited
US2909769A
Cited
US2954165A
Cited
US3193744A
Cited
US3098186A
Cited
US3042847A
Cited
US3096467A
Cited
US3183421A
Cited
US3204165A
Cited
US3219895A
Cited
US3281629A
Cited
US3217170A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |