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US3375706A
Expired / Lapsed
US
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Ultrasonic flaw detecting system
Assignee: Combustion Engineering Inc
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Filing: 1964-12-28
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Granted: 1968-04-02
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Expires: 1984-12-28
Abstract
No abstract record available.
Inventors
- 👤 Charles R Pandelis
- 👤 Jr William L Dearing
- 👤 Franklin E Misner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:41
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/22; G01N29/26; G01N29/27
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2883860A
Cited
US2984098A
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US3183709A
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US3224254A
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US3228233A
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US3274822A
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US3285059A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |