Patent US5980565A successfully refreshed from Google Patents.
US3420097A
Expired / Lapsed
US
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Vibration coupling device for an ultrasonic transducer
Assignee: Babcock International Ltd
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Filing: 1965-12-22
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Granted: 1969-01-07
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Expires: 1985-12-22
Abstract
No abstract record available.
Inventors
- 👤 Johan Battermann
- 👤 Bernard Froman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:17
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/02; G01; G01N; G01N29/00; G01N29/22; G01N29/26; G01N29/265; G01N29/28; G01N29/30; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20006
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) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |