Patent US3389276A successfully refreshed from Google Patents.
US3389276A
Expired / Lapsed
US
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Piezoelectric instrument transducers
Assignee: Consolidated Electrodynamics Corp
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Filing: 1965-05-25
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Granted: 1968-06-18
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Expires: 1985-05-25
Abstract
No abstract record available.
Inventors
- 👤 James H Gradin
- 👤 Billy R Tolliver
- 👤 Elazar Shmuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:53
CPC Classifications
G; G01; G01P; G01P15/00; G01P15/02; G01P15/08; G01P15/09; G01P15/0907
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2639210A
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US2857462A
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US2967924A
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US2963911A
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US3130329A
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US3045131A
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US3241373A
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US3185869A
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US3283590A
Cited
US3285074A
Cited
US3294988A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-18 | 1971-12-18 | 1972-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-18 | 1975-12-18 | 1976-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-18 | 1979-12-18 | 1980-06-18 | $7700.00 | Window Closed / Lapsed |