US2872571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wave forming circuit
Assignee: General Electric Co
•
Filing: 1953-08-24
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Granted: 1959-02-03
•
Expires: 1973-08-24
Abstract
No abstract record available.
Inventors
- 👤 Charles E Lenz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:21
CPC Classifications
H; H03; H03G; H03G3/00; H03G3/20; H03G3/22; G; G06; G06G; G06G7/00; G06G7/12; G06G7/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735007A
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US2485608A
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US2594104A
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US2584882A
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US2460601A
Cited
US2621292A
Cited
US2675469A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-02 | 1962-08-04 | 1963-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-02 | 1966-08-04 | 1967-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-02 | 1970-08-04 | 1971-02-03 | $7700.00 | Window Closed / Lapsed |