US3564352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strip design for a low cost plastic transistor
Assignee: Fairchild Semiconductor Corp
•
Filing: 1968-12-30
•
Granted: 1971-02-16
•
Expires: 1988-12-30
Abstract
Abstract THE AMOUNT OF MOISTURE WHICH CAN REACH A PLASTIC ENCAPSULATED TRANSISTOR IS DECREASED, WHILE THE HEAT CAPACITY OF THE PACKAGE IS INCREASED, BY BENDING THE LEAD ON WHICH THE TRANSISTOR DIE IS MOUNTED THROUGH TWO CONSECUTIVE 90* BENDS THEREBY TO DOUBLE THE LENGTH AND MASS OF THIS LEAD WITHIN THE PACKAGE AND THUS TO INCREASE THE DISTANCE MOISTURE MUST TRAVEL ALONG THE LEAD TO REACH THE TRANSISTOR. D R A W I N G
Inventors
- 👤 William L Lehner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:00
CPC Classifications
H; H10; H10W; H10W70/00; H10W70/40; H10W70/481; H10W70/01; H10W70/04; H10W70/048; H10W72/00; H10W72/50; H10W72/541; H10W72/5449; H10W72/551; H10W72/552; H10W72/5522; H10W90/00; H10W90/701; H10W90/751; H10W90/753; H10W90/754; H10W90/756
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |