US3549414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of tuning piezoelectric resonators
Assignee: Clevite Corp
•
Filing: 1968-06-12
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Granted: 1970-12-22
•
Expires: 1988-06-12
Abstract
No abstract record available.
Inventors
- 👤 Daniel R Curran
- 👤 Donald J Koneval
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:43
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/46; H03H9/54; H03H9/56; H03H9/562; H03H3/00; H03H3/007; H03H3/02; H03H3/04; H03H9/15; H03H9/17; H03H2003/0414; Y; Y10; Y10T; Y10T29/00; Y10T29/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE1027735B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |