US2459846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage control arrangement
Assignee: International Standard Electric Corp
•
Filing: 1943-05-25
•
Granted: 1949-01-25
•
Expires: 1963-05-25
Abstract
No abstract record available.
Inventors
- 👤 Smyth Charles Norman
- 👤 Grant Alan Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:31
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/46; G05F1/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR464750A
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US2088842A
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US2120884A
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US2103619A
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US2097146A
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US2243202A
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US2268366A
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US2261130A
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US2245627A
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US2175694A
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US2250511A
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US2287925A
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US2254601A
Cited
US2294171A
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US2294942A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-25 | 1952-07-26 | 1953-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-25 | 1956-07-26 | 1957-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-25 | 1960-07-26 | 1961-01-25 | $7700.00 | Window Closed / Lapsed |