Patent US2750502A successfully refreshed from Google Patents.
US2750502A
Expired / Lapsed
US
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Cathode-controlled wave generators
Assignee: RCA Corp
•
Filing: 1950-12-29
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Granted: 1956-06-12
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Expires: 1970-12-29
Abstract
No abstract record available.
Inventors
- 👤 George W Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:29
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/04; H03K3/05; H03K3/06; H03K3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA486550A
Cited
US2106342A
Cited
FR928923A
Cited
US2321269A
Cited
US2381920A
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US2494353A
Cited
GB584740A
Cited
US2550116A
Cited
US2456089A
Cited
US2564559A
Cited
US2562530A
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 |