US2623102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit element utilizing semiconductive materials
Assignee: AT&T Inc
•
Filing: 1949-05-05
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Granted: 1952-12-23
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Expires: 1969-05-05
Abstract
No abstract record available.
Inventors
- 👤 Shockley William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:36
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/35; H03B; H03B5/00; H03B5/08; H03B5/12; H03B5/1206; H03B5/1231; H03B5/1237; H03B5/124; H03B5/1256; H03B5/1296; H03C; H03C1/00; H03C1/36; H03D; H03D7/00; H03D7/12; H03F; H03F3/00; H03F3/04; H03F3/14; H10; H10D; H10D62/00; H10D62/10; H10D62/13; H10D62/133; H10D99/00; H10P; H10P95/00; H10P95/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1949383A
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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) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |