US2764733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for detecting flaws
Assignee: Magnaflux Corp
•
Filing: 1952-05-03
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Granted: 1956-09-25
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Expires: 1972-05-03
Abstract
No abstract record available.
Inventors
- 👤 Forest Taber De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:12
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/72; G01N27/82
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR604078A
Cited
GB497095A
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US2136375A
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US2242366A
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US2252475A
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US2236373A
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US2589766A
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US2532876A
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US2530564A
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US2666813A
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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) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |