US3458915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a piezoelectric device
Assignee: Bourns Inc
•
Filing: 1967-10-20
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Granted: 1969-08-05
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Expires: 1987-10-20
Abstract
No abstract record available.
Inventors
- 👤 Kenneth F Miller
- 👤 Melvin H Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:10
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/02; H03H9/125; H03H9/145; H03H9/14502; H03H9/14544; H03H9/14547; H03H9/14561; H03H9/46; H03H9/54; H03H9/56; H03H9/562; H10; H10N; H10N30/00; H10N30/01; H10N30/05; H10N30/053; H10N30/20; H10N30/204; H10N30/50; H10N30/503; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1043; Y10T156/1044; Y10T156/1048; Y10T29/00; Y10T29/42; Y10T29/43; Y10T29/435; Y10T29/49; Y10T29/49002; Y10T29/49004; Y10T29/4902; Y10T29/49069; Y10T29/49082; Y10T29/49099; Y10T29/49117; Y10T29/49124; Y10T29/49174
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |