Patent US2682766A successfully refreshed from Google Patents.
US2682766A
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Ultrasonic inspection device
Assignee: Sperry Products Inc
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Filing: 1950-08-17
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Granted: 1954-07-06
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Expires: 1970-08-17
Abstract
No abstract record available.
Inventors
- 👤 Howard E Van Valkenburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:47
CPC Classifications
A; A61; A61B; A61B8/00; G; G01; G01N; G01N29/00; G01N29/04; G01N29/06; G01N29/0609; G01N29/0618; G01N29/0627; G01N29/07; G01N29/11; G01N29/22; G01N29/30; G01N29/34; G01N29/341; G01N29/36; G01N29/38; G01N2291/00; G01N2291/04; G01N2291/044
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) | 1957-07-05 | 1958-01-04 | 1958-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-05 | 1962-01-04 | 1962-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-05 | 1966-01-04 | 1966-07-06 | $7700.00 | Window Closed / Lapsed |