US4252990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic circuit parts
Assignee: Shin-Etsu Polymer Co Ltd
•
Filing: 1978-10-06
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Granted: 1981-02-24
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Expires: 1998-10-06
Abstract
Abstract An electronic circuit part comprises a solid-state circuit element and at least one pin terminal, which are electrically connected through an intervening elastomeric sheet, which is anisotropically electroconductive in the direction perpendicular to its plane.
Inventors
- 👤 Ryoichi Sado
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:30
CPC Classifications
H; H01; H01C; H01C1/00; H01C1/02; H01C1/01; H01C1/014; H01C1/14
Claims Analysis
Total Claims: 0
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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) | 1984-02-24 | 1984-08-25 | 1985-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-24 | 1988-08-25 | 1989-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-24 | 1992-08-25 | 1993-02-24 | $7700.00 | Window Closed / Lapsed |