US2779993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a diode element
Assignee: Individual
•
Filing: 1953-08-17
•
Granted: 1957-02-05
•
Expires: 1973-08-17
Abstract
No abstract record available.
Inventors
- 👤 Albert F Pityo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:35
CPC Classifications
H; H10; H10P; H10P72/00; H10P72/04; H10P72/0438; B; B21; B21F; B21F45/00; H10D; H10D99/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49169
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1669833A
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US2003464A
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US2361983A
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US2429222A
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US2434286A
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US2368730A
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US2384134A
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US2677173A
Cited
US2718647A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |