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Patent US3518504A successfully refreshed from Google Patents.
US3518504A
Expired / Lapsed
US
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Transistor with lead-in electrodes
Assignee: International Standard Electric Corp
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Filing: 1967-10-30
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Granted: 1970-06-30
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Expires: 1987-10-30
Abstract
No abstract record available.
Inventors
- 👤 Bernhard Dietrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:45
CPC Classifications
H; H10; H10D; H10D99/00; H10W; H10W20/00; H10W20/40; H10W42/00; H10W42/20; H10W44/00; H10W44/20; H10W44/601; H10W70/00; H10W70/40; H10W70/421; H10W72/00; H10W72/50; H10W72/541; H10W72/5449; H10W90/00; H10W90/701; H10W90/751; H10W90/756
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2903630A
Cited
US3373323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-29 | 1973-12-29 | 1974-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-29 | 1977-12-29 | 1978-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-29 | 1981-12-29 | 1982-06-30 | $7700.00 | Window Closed / Lapsed |