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US2501356A
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Attraction-repulsion moving iron vane instrument
Assignee: Westinghouse Electric Corp
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Filing: 1943-12-22
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Granted: 1950-03-21
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Expires: 1963-12-22
Abstract
No abstract record available.
Inventors
- 👤 Herbert T Rights
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:25
CPC Classifications
G; G01; G01R; G01R5/00; G01R5/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1501189A
Cited
GB290738A
Cited
GB296749A
Cited
US1835658A
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US2157947A
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US2183685A
Cited
US2119015A
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US2183566A
Cited
US2237142A
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US2260026A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-20 | 1953-09-19 | 1954-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-20 | 1957-09-19 | 1958-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-20 | 1961-09-19 | 1962-03-21 | $7700.00 | Window Closed / Lapsed |