US3491273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor devices having field relief electrode
Assignee: Texas Instruments Inc
•
Filing: 1967-10-25
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Granted: 1970-01-20
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Expires: 1987-10-25
Abstract
No abstract record available.
Inventors
- 👤 Roy W Stiegler Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:12
CPC Classifications
H; H10; H10W; H10W20/00; H10W20/40; H10D; H10D99/00; H10P; H10P14/00; H10P14/60; H10P14/63; H10P14/6326; H10P14/6328; H10P14/6334; H10P14/69; H10P14/692; H10P14/6921; H10P14/69215
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3097308A
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US3109942A
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US3197681A
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FR1361215A
Cited
US3226613A
Cited
US3226612A
Cited
US3275910A
Cited
US3302076A
Cited
US3292240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |