US3234418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synchronous motor
Assignee: Walter E Heller and Co Inc
•
Filing: 1962-06-22
•
Granted: 1966-02-08
•
Expires: 1982-06-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Patrick M Tomaro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:41
CPC Classifications
H; H02; H02K; H02K19/00; H02K19/02; H02K19/04; H02K19/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1966897A
Cited
US2274957A
Cited
US2512848A
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US2432070A
Cited
US2672564A
Cited
US2804557A
Cited
US3014141A
Cited
DE1021943B
Cited
US3092743A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |