US2987658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved semiconductor diode
Assignee: Lanteris Space LLC
•
Filing: 1958-01-10
•
Granted: 1961-06-06
•
Expires: 1978-01-10
Abstract
No abstract record available.
Inventors
- 👤 George C Messenger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:39
CPC Classifications
H; H10; H10D; H10D64/00; H10D64/20; H10D64/23; H10D1/00; H10D1/40; H10D62/00; H10D62/10; H10D99/00; H10P; H10P95/00; H10P95/50; H10W; H10W72/00; H10W76/00; H10W76/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2840770A
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Cited
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Cited
US2870052A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |