Patent US2943220A successfully refreshed from Google Patents.
US2943220A
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US
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Cathode-ray apparatus
Assignee: General Dynamics Corp
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Filing: 1957-01-31
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Granted: 1960-06-28
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Expires: 1977-01-31
Abstract
No abstract record available.
Inventors
- 👤 Joseph T Mcnaney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:36
CPC Classifications
G; G09; G09G; G09G1/00; G09G1/22; G01; G01S; G01S7/00; G01S7/02; G01S7/04; G01S7/06; G01S7/22; G09G1/20; H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2684453A
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US2880358A
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US2843788A
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US2728872A
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US2831918A
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US2761988A
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US2802966A
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US2806163A
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US2769116A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |