US2953693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor diode
Assignee: Westinghouse Electric Corp
•
Filing: 1957-02-27
•
Granted: 1960-09-20
•
Expires: 1977-02-27
Abstract
No abstract record available.
Inventors
- 👤 Philips John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:27
CPC Classifications
H; H10; H10D; H10D8/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2680220A
Cited
US2762953A
Cited
US2783197A
Cited
US2757323A
Cited
US2759133A
Cited
US2705767A
Cited
US2840494A
Cited
US2846346A
Cited
US2778980A
Cited
US2842668A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |