US3543058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piezoelectric transducer
Assignee: Westinghouse Electric Corp
•
Filing: 1969-11-10
•
Granted: 1970-11-24
•
Expires: 1989-11-10
Abstract
No abstract record available.
Inventors
- 👤 Paul G Klemens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:19
CPC Classifications
H; H10; H10N; H10N30/00; H10N30/50; H03; H03H; H03H9/00; H03H9/02; H03H9/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2498737A
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US2540194A
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US2787777A
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US2984756A
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US3012211A
Cited
US3093758A
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US3317847A
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US3271622A
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US3453456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-23 | 1974-05-25 | 1974-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-23 | 1978-05-25 | 1978-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-23 | 1982-05-25 | 1982-11-24 | $7700.00 | Window Closed / Lapsed |