US3020472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for detecting discontinuity in an electrical conducting object
Assignee: United States Steel Corp
•
Filing: 1956-12-26
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Granted: 1962-02-06
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Expires: 1976-12-26
Abstract
No abstract record available.
Inventors
- 👤 Thomas K Cauley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:39
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/72; G01N27/82; G01N27/90; G01N27/9046; G01V; G01V3/00; G01V3/08; G01V3/10; G01V3/104; G01V3/105; G01V3/107; G06; G06M; G06M1/00; G06M1/08; G06M1/10; G06M7/00; G06M7/02; G06M7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2065118A
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US2189092A
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US2124579A
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US2753520A
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US2594947A
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US2918621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |