US3415943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stud type base design for high power semiconductors
Assignee: Westinghouse Electric Corp
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Filing: 1966-08-02
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Granted: 1968-12-10
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Expires: 1986-08-02
Abstract
No abstract record available.
Inventors
- 👤 Meyerhoff Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:53
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/60; H10W40/611; H10W72/00; H10W40/625
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3020454A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |