US2728874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode ray beam deflection circuits
Assignee: RCA Corp
•
Filing: 1952-12-09
•
Granted: 1955-12-27
•
Expires: 1972-12-09
Abstract
No abstract record available.
Inventors
- 👤 Morgan Jeremiah Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:55
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/06; H03K4/08; H03K4/10; H03K4/26; H03K4/39
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2299571A
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US2230819A
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US2251851A
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US2247538A
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US2594841A
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US2547213A
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US2623996A
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US2634335A
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US2559525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |