US2715189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for emitting and receiving elastic waves
Assignee: Umicore NV SA
•
Filing: 1951-09-11
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Granted: 1955-08-09
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Expires: 1971-09-11
Abstract
No abstract record available.
Inventors
- 👤 Ivan Ots
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:08
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/004; G01; G01N; G01N29/00; G01N29/22; G01N29/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2384465A
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US2497680A
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US2520938A
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GB613239A
Cited
US2532507A
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US2545101A
Cited
US2569987A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-08 | 1959-02-07 | 1959-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-08 | 1963-02-07 | 1963-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-08 | 1967-02-07 | 1967-08-09 | $7700.00 | Window Closed / Lapsed |