Patent US2827591A successfully refreshed from Google Patents.
US2827591A
Expired / Lapsed
US
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Cathode ray scanning systems
Assignee: GTE Sylvania Inc
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Filing: 1954-12-23
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Granted: 1958-03-18
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Expires: 1974-12-23
Abstract
No abstract record available.
Inventors
- 👤 Bowie Robert Mcneil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:37
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)
US2630548A
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US2587074A
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US2593261A
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US2577038A
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US2631259A
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US2644855A
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US2735031A
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US2761089A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-17 | 1961-09-16 | 1962-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-17 | 1965-09-16 | 1966-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-17 | 1969-09-16 | 1970-03-18 | $7700.00 | Window Closed / Lapsed |