US3402349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support apparatus for detecting flaws in ferrous objects by magnetic particle inspection
Assignee: Individual
•
Filing: 1965-04-30
•
Granted: 1968-09-17
•
Expires: 1985-04-30
Abstract
No abstract record available.
Inventors
- 👤 Phillip J Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:48
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)
US2735323A
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US2267999A
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US2301203A
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US2277431A
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US2421775A
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US2430167A
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FR972672A
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GB735880A
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GB782074A
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US3016487A
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US3173085A
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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) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |