US3173035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Miniaturized piezoelectric crystal device
Assignee: MIDLAND Manufacturing Co DIVISION O
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Filing: 1960-10-17
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Granted: 1965-03-09
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Expires: 1980-10-17
Abstract
No abstract record available.
Inventors
- 👤 George F Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:07
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/02; H03H9/05; H03H9/0504; H03H9/0514; H03H9/0519
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
IN MINIATURIZED PIEZOELECTRIC CRYSTAL APPARATUS: AN ELECTRICALLY NONCONDUCTIVE WAFER HAVING OPPOSED MAJOR SURFACES AND AN OPENING THERETHROUGH COMMUNICATING SAID SURFACES; AN ELECTRICALLY CONDUCTIVE BAND ON EACH OF SAID SURFACES RESPECTIVELY IN CIRCUMSCRIBING RELATIONSHIP TO SAID OPENING; A RELATIVELY THIN PIEZOELECTRIC ELEMENT HAVING OPPOSED MAJOR FACES AND PROVIDED WITH ELECTRODE STRUCTURE ON EACH OF SAID FACES RESPECTIVELY; ELECTRICALLY CONDUCTIVE MEANS COUPLED WITH THE ELECTRODE STRUCTURES AND EACH OF THE BANDS AND SUSPENDING THE ELEMENT IN SAID OPENING FOR PIEZOELECTRIC VIBRATION THEREIN; AND A CLOSURE CAP SECURED TO EACH OF SAID BANDS RESPECTIVELY IN SEALING AND CLOSING RELATIONSHIP TO THE OPENING IN THE WAFER.
Claim 2
Dependent Claim
102 words
IN MINIATURIZED PIEZOELECTRIC CRYSTAL APPARATUS: AN ELECTRICALLY NONCONDUCTIVE WAFER HAVING OPPOSED MAJOR SURFACES AND AN OPENING THERETHROUGH COMMUNICATING SAID SURFACES; AN ELECTRICALLY CONDUCTIVE BAND ON EACH OF SAID SURFACES RESPECTIVELY IN CIRCUMSCRIBING RELATIONSHIP TO SAID OPENING; A RELATIVELY THIN PIEZOELECTRIC ELEMENT HAVING OPPOSED MAJOR FACES AND PROVIDED WITH ELECTRODE STRUCTURE ON EACH OF SAID FACES RESPECTIVELY; ELECTRICALLY CONDUCTIVE MEANS COUPLED WITH THE ELECTRODE STRUCTURES AND EACH OF THE BANDS AND SUSPENDING THE ELEMENT IN SAID OPENING FOR PIEZOELECTRIC VIBRATION THEREIN; AND A CLOSURE CAP SECURED TO EACH OF SAID BANDS RESPECTIVELY IN SEALING AND CLOSING RELATIONSHIP TO THE OPENING IN THE WAFER.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |