US3470036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rectifying semi-conductor body
Assignee: ABB Norden Holding AB
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Filing: 1965-05-14
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Granted: 1969-09-30
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Expires: 1985-05-14
Abstract
No abstract record available.
Inventors
- 👤 Per Svedberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:51
CPC Classifications
H; H10; H10P; H10P14/00; H10P14/20; H10P14/29; H10P14/2901; H10P14/2902; H10P14/2905; H10D; H10D62/00; H10D62/10; H10D62/17; H10D62/192; H10D62/199; H10D62/206; H10D64/00; H10D64/20; H10D64/27; H10D64/291; H10P14/24; H10P14/34; H10P14/3402; H10P14/3404; H10P14/3411
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) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |