US2813252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic shunt structure for induction meters
Assignee: Westinghouse Electric Corp
•
Filing: 1950-03-30
•
Granted: 1957-11-12
•
Expires: 1970-03-30
Abstract
No abstract record available.
Inventors
- 👤 Richard M Leippe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:24
CPC Classifications
G; G01; G01R; G01R11/00; G01R11/02; G01R11/17; G01R11/21
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE480414C
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DE481172C
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US1750259A
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US1826447A
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US1856554A
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GB353561A
Cited
GB396917A
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DE690693C
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US2177274A
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GB640400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-11 | 1961-05-13 | 1961-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-11 | 1965-05-13 | 1965-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-11 | 1969-05-13 | 1969-11-12 | $7700.00 | Window Closed / Lapsed |