US2471836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic signal generator
Assignee: General Electric Co
•
Filing: 1944-06-02
•
Granted: 1949-05-31
•
Expires: 1964-06-02
Abstract
No abstract record available.
Inventors
- 👤 Donald E Norgaard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:42
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/53; H03K3/543
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2153202A
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US2103090A
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US2181309A
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US2237661A
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US2266668A
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US2258877A
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US2401807A
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US2420013A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-30 | 1952-11-29 | 1953-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-30 | 1956-11-29 | 1957-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-30 | 1960-11-29 | 1961-05-31 | $7700.00 | Window Closed / Lapsed |