US2630548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode-ray system
Assignee: Individual
•
Filing: 1938-12-03
•
Granted: 1953-03-03
•
Expires: 1958-12-03
Abstract
No abstract record available.
Inventors
- 👤 Muller Egon Nicolas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:18
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/22; H04N9/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE653467C
Cited
US1719756A
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US1976400A
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US1987686A
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US2098598A
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US2084700A
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GB434891A
Cited
GB434890A
Cited
US2146876A
Cited
FR793556A
Cited
FR821449A
Cited
US2204055A
Cited
US2490812A
Cited
US2457911A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-02 | 1956-09-01 | 1957-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-02 | 1960-09-01 | 1961-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-02 | 1964-09-01 | 1965-03-03 | $7700.00 | Window Closed / Lapsed |