US2531413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for detecting flaws
Assignee: Individual
•
Filing: 1946-07-19
•
Granted: 1950-11-28
•
Expires: 1966-07-19
Abstract
No abstract record available.
Inventors
- 👤 John C Dionne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:41
CPC Classifications
B; B61; B61K; B61K9/00; B61K9/08; B61K9/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1955953A
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US1967812A
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US2333086A
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US2113785A
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US2152540A
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US2218673A
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US2297879A
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US2317721A
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US2276011A
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US2388683A
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US2356968A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |