US2526977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic flaw detecting device
Assignee: LOUISE T LESLIE
•
Filing: 1947-08-07
•
Granted: 1950-10-24
•
Expires: 1967-08-07
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:03
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/72; G01N27/82; G01N27/90; G01N27/9093; B; B61; B61K; B61K9/00; B61K9/08; B61K9/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1893074A
Cited
US2065118A
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US2010813A
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US2102452A
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US2124579A
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US2353211A
Cited
US2388848A
Cited
US2255053A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-23 | 1954-04-24 | 1954-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-23 | 1958-04-24 | 1958-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-23 | 1962-04-24 | 1962-10-24 | $7700.00 | Window Closed / Lapsed |