US3242361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High frequency induction motor
Assignee: Allis Chalmers Corp
•
Filing: 1962-09-18
•
Granted: 1966-03-22
•
Expires: 1982-09-18
Abstract
No abstract record available.
Inventors
- 👤 Alan C Varner
- 👤 Jan E Haegh
- 👤 Wilhelm A Andersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:30
CPC Classifications
H; H02; H02K; H02K17/00; H02K17/02; H02K17/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US919527A
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US1554702A
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US1857023A
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US2274070A
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US2243021A
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US2590855A
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US2769108A
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US2913607A
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US2947892A
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US2959694A
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US3083313A
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US3133215A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |