US2957340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic image detector
Assignee: General Electric Co
•
Filing: 1956-03-15
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Granted: 1960-10-25
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Expires: 1976-03-15
Abstract
No abstract record available.
Inventors
- 👤 Henrique A F Rocha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:43
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/495; G; G01; G01H; G01H3/00; G01H3/10; G01H3/12; G01H3/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2164125A
Cited
US2696522A
Cited
US2528725A
Cited
US2610245A
Cited
US2700895A
Cited
US2821643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |