US2617854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Induced voltage flaw detector
Assignee: General Electric Co
•
Filing: 1949-08-13
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Granted: 1952-11-11
•
Expires: 1969-08-13
Abstract
No abstract record available.
Inventors
- 👤 Howard E Van Valkenburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:19
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/72; G01N27/82; G01N27/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2077380A
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US2179240A
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US2207592A
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US2388683A
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US2519367A
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US2527170A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |