US3131323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synchronous motor for clocks or the like
Assignee: General Time Corp
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Filing: 1960-07-07
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Granted: 1964-04-28
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Expires: 1980-07-07
Abstract
No abstract record available.
Inventors
- 👤 Herbert C Roters
- 👤 Black Marion Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:58
CPC Classifications
G; G04; G04C; G04C15/00; G04C15/0009; H; H02; H02K; H02K19/00; H02K19/02; H02K19/04; H02K19/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
102 words
IN A SYNCHRONOUS MOTOR FOR USE IN CLOCKS OR THE LIKE THE COMBINATION COMPRISING A POLE STRUCTURE INCLUDING A SERIES OF SHADED AND UNSHADED POLES ARRANGED IN A GENERALLY CYLINDRICAL LOCUS AND HAVING A COIL FOR EXCITING THE SAME, A ROTOR SUB-ASSEMBLY INCLUDING A GENERALLY CYLINDRICAL HOUSING HAVING A ROTOR AND DIMENSIONED TO FIT WITHIN THE CYLINDRICAL LOCUS OF THE POLES, SAID POLES BEING SPRUNG RADIALLY INWARD SO THAT EACH OF THE POLES BEARS RESILIENTLY AGAINST THE OUTER SURFACE OF THE HOUSING, THE HOUSING HAVING A STEPPED CONTOUR FOR MAINTAINING THE SHADED AND UNSHADED POLES AT PREDETERMINED SPACINGS RELATIVE TO THE ROTOR.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |