US3416366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable size ultrasonic beam producing transducer
Assignee: Institut de Recherches de la Siderurgie Francaise IRSID
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Filing: 1965-08-17
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Granted: 1968-12-17
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Expires: 1985-08-17
Abstract
No abstract record available.
Inventors
- 👤 Beaujard Louis
- 👤 Mondot Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:02
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/22; G01N29/24; G01N29/2437; G10; G10K; G10K11/00; G10K11/002; B; B29; B29K; B29K2021/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |