US2970248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pin material for glass seal semiconductor rectifier
Assignee: Pacific Semiconductors Inc
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Filing: 1957-11-12
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Granted: 1961-01-31
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Expires: 1977-11-12
Abstract
No abstract record available.
Inventors
- 👤 Armen N Sahagun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:54
CPC Classifications
C; C22; C22C; C22C5/00; C22C5/06; B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3006
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
63 words
IN A SEMICONDUCTOR CRYSTAL DIODE OF THE TYPE HAVING LARGE METAL PINS AS ELECTRODES HERMETICALLY SEALED WITHIN AN ENVELOPE SUBASSEMBLY WHEREIN SAID SUBASSEMBLY CONSISTS OF AN ANNULAR GLASS SLEEVE HAVING BEDED METAL TUBES SEALED WITHIN OPPOSITE ENDS THEREOF, SAID METAL PINS BEING OF THE FOLLOWING ELEMENTS INDICATED BASED UPON PERCENTAGES BY WEIGHT: SILVER C 30-80 COPPER 5-80 INDIUM 0.1-15 ZINC 0-30 LITHIUM 0.05-5
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) | 1964-01-31 | 1964-08-01 | 1965-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-31 | 1968-08-01 | 1969-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-31 | 1972-08-01 | 1973-01-31 | $7700.00 | Window Closed / Lapsed |