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US2823091A
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Controlled interruptor for variablespeed tachometer
Assignee: Wagner Electric Corp
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Filing: 1954-12-13
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Granted: 1958-02-11
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Expires: 1974-12-13
Abstract
No abstract record available.
Inventors
- 👤 Arthur N Milster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:48
CPC Classifications
G; G01; G01P; G01P1/00; G01P1/12; G01P1/122; G01P1/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1909310A
Cited
US2668094A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |