Patent US3437837A successfully refreshed from Google Patents.
US3437837A
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US
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Adjustable amplitude limiter circuit
Assignee: Westinghouse Electric Corp
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Filing: 1965-11-19
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Granted: 1969-04-08
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Expires: 1985-11-19
Abstract
No abstract record available.
Inventors
- 👤 Robert E Hull
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:35
CPC Classifications
H; H03; H03G; H03G11/00; H03G11/002; G; G06; G06G; G06G7/00; G06G7/12; G06G7/25; H03G11/02; H03K; H03K5/00; H03K5/01; H03K5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3121200A
Cited
US3209266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |