US2591981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit arrangement, including a cathode-ray tube comprising cathode-ray beam deflecting means
Assignee: Hartford National Bank and Trust Co
•
Filing: 1947-12-10
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Granted: 1952-04-08
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Expires: 1967-12-10
Abstract
No abstract record available.
Inventors
- 👤 Adrianus Johannes Wilhel Marie
- 👤 Zeger Van Gelder
- 👤 Jonker Johan Lodewijk Hendrik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:29
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/88; H01; H01J; H01J31/00; H01J31/02; H01J31/04; H01J31/06; H03K29/00; H04; H04Q; H04Q3/00; H04Q3/42; H04Q3/52; H04Q3/525
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2011920A
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US2107410A
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US2204055A
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US2224677A
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US2361766A
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US2446945A
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US2436677A
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US2404106A
Cited
US2417450A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-08 | 1955-10-08 | 1956-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-08 | 1959-10-08 | 1960-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-08 | 1963-10-08 | 1964-04-08 | $7700.00 | Window Closed / Lapsed |