US3453872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Eddy sonic inspection method
Assignee: Boeing North American Inc
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Filing: 1966-03-24
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Granted: 1969-07-08
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Expires: 1986-03-24
Abstract
No abstract record available.
Inventors
- 👤 Ronald J Botsco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:02
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/04; G; G01; G01N; G01N27/00; G01N27/72; G01N27/82; G01N27/90; G01N27/9006; G01N29/00; G01N29/04; G01N29/12; G01N29/22; G01N29/24; G01N29/2412
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US445860A
Cited
US1990085A
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US2320390A
Cited
US2403999A
Cited
US2752781A
Cited
US2851876A
Cited
US3038329A
Cited
GB969515A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |