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Patent US2475132A successfully refreshed from Google Patents.
US2475132A
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Electronic motor control apparatus
Assignee: MINNEAPOLIS HENEYWELL REGULATO
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Filing: 1943-08-12
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Granted: 1949-07-05
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Expires: 1963-08-12
Abstract
No abstract record available.
Inventors
- 👤 William K Ergen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:01
CPC Classifications
A; A62; A62B; A62B9/00; A62B9/02; G; G05; G05D; G05D21/00; G05D21/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1959804A
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US2204225A
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US2222947A
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US2299109A
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US2172064A
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US2263497A
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US2245124A
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US2286985A
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US2380947A
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US2388769A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-04 | 1953-01-03 | 1953-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-04 | 1957-01-03 | 1957-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-04 | 1961-01-03 | 1961-07-05 | $7700.00 | Window Closed / Lapsed |