US3500085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric motor and rectifier assembly
Assignee: Ambac Industries Inc
•
Filing: 1969-02-26
•
Granted: 1970-03-10
•
Expires: 1989-02-26
Abstract
No abstract record available.
Inventors
- 👤 James W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:28
CPC Classifications
F; F02; F02N; F02N15/00; F02N15/006; H; H02; H02K; H02K11/00; H02K11/04; H02K11/049; H02K11/05; H02K23/00; H02K23/66
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1447464A
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US1760874A
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US1980602A
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US2137894A
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US3271579A
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US3329881A
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US3356873A
Cited
US3405293A
Cited
US3336490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |