US2864062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Negative resistance using transistors
Assignee: General Electric Co
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Filing: 1955-02-15
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Granted: 1958-12-09
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Expires: 1975-02-15
Abstract
No abstract record available.
Inventors
- 👤 Johannes S Schaffner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:02
CPC Classifications
H; H04; H04B; H04B3/00; H04B3/02; H04B3/04; H04B3/16; H04B3/18; H03; H03B; H03B7/00; H03B7/02; H03B7/06; H03H; H03H11/00; H03H11/46; H03H11/52; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281
Claims Analysis
Total Claims: 0
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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) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |