Patent US4962856A successfully refreshed from Google Patents.
Patent US2518943A successfully refreshed from Google Patents.
US2518943A
Expired / Lapsed
US
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Method and apparatus for testing metal bars
Assignee: Individual
•
Filing: 1945-06-07
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Granted: 1950-08-15
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Expires: 1965-06-07
Abstract
No abstract record available.
Inventors
- 👤 Charles W Schott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:12
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/72; G01N27/82; G01N27/83; G01N27/84
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1426384A
Cited
US1960898A
Cited
US2057091A
Cited
US2011408A
Cited
GB502557A
Cited
US2217733A
Cited
US2252475A
Cited
US2358782A
Cited
US2455874A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-14 | 1954-02-13 | 1954-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-14 | 1958-02-13 | 1958-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-14 | 1962-02-13 | 1962-08-15 | $7700.00 | Window Closed / Lapsed |