Patent GB436768A successfully refreshed from Google Patents.
US2750510A
Expired / Lapsed
US
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Free-running square wave generator
Assignee: RCA Corp
•
Filing: 1952-01-16
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Granted: 1956-06-12
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Expires: 1972-01-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Raymond P Moore
- 👤 Richard O Endres
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:33
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/282
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2436808A
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US2406871A
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US2417834A
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US2447082A
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US2463073A
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US2556296A
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US2533001A
Cited
US2681996A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |