US3031606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric motor construction
Assignee: Individual
•
Filing: 1957-05-27
•
Granted: 1962-04-24
•
Expires: 1977-05-27
Abstract
No abstract record available.
Inventors
- 👤 Charles R Cantouwine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:14
CPC Classifications
H; H02; H02P; H02P1/00; H02P1/16; H02P1/42; H01; H01H; H01H35/00; H01H35/06; H01H35/10; H02K; H02K17/00; H02K17/02; H02K17/04; H02K17/08; H02P2207/00; H02P2207/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2269069A
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US2300708A
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US2476073A
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US2670416A
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US2669619A
Cited
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Cited
US2813239A
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US2774024A
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US2817050A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |