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Patent US2519562A successfully refreshed from Google Patents.
US2519562A
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Electrical control circuit
Assignee: Askania Regulator Co
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Filing: 1944-02-12
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Granted: 1950-08-22
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Expires: 1964-02-12
Abstract
No abstract record available.
Inventors
- 👤 Glass Paul
- 👤 Frank E Prem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:26
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/013; G05D; G05D3/00; G05D3/12; G05D3/14; G05D3/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1942587A
Cited
US2114614A
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US2150265A
Cited
US2228078A
Cited
US2343116A
Cited
US2342257A
Cited
US2333393A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-21 | 1954-02-20 | 1954-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-21 | 1958-02-20 | 1958-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-21 | 1962-02-20 | 1962-08-22 | $7700.00 | Window Closed / Lapsed |