Patent US3423992A successfully refreshed from Google Patents.
US3423992A
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Ultrasonic apparatus for measuring thickness or distances
Assignee: Realisations Ultrasoniques SA
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Filing: 1965-11-17
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Granted: 1969-01-28
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Expires: 1985-11-17
Abstract
No abstract record available.
Inventors
- 👤 Jacques Dory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:18
CPC Classifications
G; G01; G01B; G01B17/00; G01B17/02; G01F; G01F23/00; G01F23/22; G01F23/28; G01F23/296; G01F23/2962; G01S; G01S15/00; G01S15/02; G01S15/06; G01S15/08; G01S15/10; G01S15/101; G01N; G01N2291/00; G01N2291/02; G01N2291/028; G01N2291/02836
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) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |