Patent US2532747A successfully refreshed from Google Patents.
US2532747A
Expired / Lapsed
US
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Circuit arrangement comprising a cathode-ray tube
Assignee: Hartford National Bank and Trust Co
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Filing: 1949-02-11
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Granted: 1950-12-05
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Expires: 1969-02-11
Abstract
No abstract record available.
Inventors
- 👤 Zeger Van Gelder
- 👤 Adrianus Johannes Wilhel Marie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:35
CPC Classifications
H; H04; H04J; H04J3/00; H04J3/02; H04J3/04; H04J3/045; H01; H01J; H01J31/00; H01J31/02; H01J31/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-04 | 1954-06-05 | 1954-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-04 | 1958-06-05 | 1958-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-04 | 1962-06-05 | 1962-12-05 | $7700.00 | Window Closed / Lapsed |