US2693105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic inspection device
Assignee: Sperry Products Inc
•
Filing: 1950-10-21
•
Granted: 1954-11-02
•
Expires: 1970-10-21
Abstract
No abstract record available.
Inventors
- 👤 Robert N Straehl
- 👤 William E Mesh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:37
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/22; G01N29/24; G01N29/2487; G01N29/04; G01N29/11; G01N29/36; G01N29/40; G01N2291/00; G01N2291/04; G01N2291/044; G01N2291/056
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1933976A
Cited
US2406316A
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US2430038A
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US2524837A
Cited
US2532347A
Cited
US2415918A
Cited
US2549022A
Cited
US2534006A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-01 | 1958-05-03 | 1958-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-01 | 1962-05-03 | 1962-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-01 | 1966-05-03 | 1966-11-02 | $7700.00 | Window Closed / Lapsed |