Patent US3522382A successfully refreshed from Google Patents.
US3522382A
Expired / Lapsed
US
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Switching device employing a piezoelectric ceramic resonator
Assignee: Panasonic Holdings Corp
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Filing: 1968-04-08
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Granted: 1970-07-28
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Expires: 1988-04-08
Abstract
No abstract record available.
Inventors
- 👤 Yukihiko Ise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:23
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/46; H03H9/54; H03H9/56; H03H9/562; H03D; H03D3/00; H03D3/02; H03D3/06; H03D3/16; H03H9/542; H03H9/566; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/1646; H04B1/1653
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-27 | 1974-01-26 | 1974-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-27 | 1978-01-26 | 1978-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-27 | 1982-01-26 | 1982-07-28 | $7700.00 | Window Closed / Lapsed |