Patent US3375423A successfully refreshed from Google Patents.
US3375423A
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US
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Synchronous motor, especially for electric clocks
Assignee: Diehl Verwaltungs Stiftung
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Filing: 1965-06-01
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Granted: 1968-03-26
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Expires: 1985-06-01
Abstract
No abstract record available.
Inventors
- 👤 Mayer Franz
- 👤 Meisner Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:04
CPC Classifications
G; G04; G04C; G04C15/00; G04C3/00; G04C3/14; G04C3/16; G04C3/165; G04F; G04F5/00; G04F5/04; H; H02; H02K; H02K21/00; H02K21/12; H02K21/14; H02K29/00; H02K29/06; H02K29/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3168690A
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US3067370A
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US3268786A
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US3134220A
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US3168689A
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US3142012A
Cited
US3274470A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |