US2984890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystal diode rectifier and method of making same
Assignee: GAHAGAN Inc
•
Filing: 1956-12-24
•
Granted: 1961-05-23
•
Expires: 1976-12-24
Abstract
No abstract record available.
Inventors
- 👤 John G Hambor
- 👤 Weaver Carson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:34
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/60; H10D; H10D99/00; H10W72/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2524035A
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US2577803A
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US2666977A
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US2653374A
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US2701326A
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US2697269A
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US2671156A
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US2650311A
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US2829422A
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US2709780A
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US2813233A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |