Patent US2631188A successfully refreshed from Google Patents.
US2631188A
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Electrical testing apparatus
Assignee: General Electric Co
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Filing: 1949-10-06
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Granted: 1953-03-10
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Expires: 1969-10-06
Abstract
No abstract record available.
Inventors
- 👤 Charles W Clapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:24
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/08; G01V3/10; G01V3/101; G01V3/102
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1518543A
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US1847127A
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US2124577A
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US2237254A
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US2329098A
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US2434203A
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US2503721A
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US2495627A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-09 | 1956-09-08 | 1957-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-09 | 1960-09-08 | 1961-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-09 | 1964-09-08 | 1965-03-10 | $7700.00 | Window Closed / Lapsed |