Patent US3401276A successfully refreshed from Google Patents.
US3401276A
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US
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Piezoelectric resonators
Assignee: Clevite Corp
•
Filing: 1965-04-19
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Granted: 1968-09-10
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Expires: 1985-04-19
Abstract
No abstract record available.
Inventors
- 👤 Daniel R Curran
- 👤 Donald J Koneval
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:13
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)
US1848630A
Cited
US2445310A
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US2886787A
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US2859346A
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US2901644A
Cited
US3253219A
Cited
US3222622A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |