US3497776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Uniform avalanche-breakdown rectifiers
Assignee: Westinghouse Electric Corp
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Filing: 1968-03-06
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Granted: 1970-02-24
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Expires: 1988-03-06
Abstract
No abstract record available.
Inventors
- 👤 John Philips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:10
CPC Classifications
H; H10; H10D; H10D99/00; H10D8/00; H10D8/20; H10D8/25; H10P; H10P95/00; H10P95/50; Y; Y10; Y10S; Y10S148/00; Y10S148/145; Y10S148/151; Y10S257/00; Y10S257/913
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |