US2859538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode ray tube display systems or apparatus
Assignee: Communications Patents Ltd
•
Filing: 1955-01-17
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Granted: 1958-11-11
•
Expires: 1975-01-17
Abstract
No abstract record available.
Inventors
- 👤 Albert E Cutler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:36
CPC Classifications
G; G09; G09G; G09G1/00; G09G1/06; G09G1/08; G09G1/10; G01; G01S; G01S7/00; G01S7/02; G01S7/40; G01S7/4004; G01S7/4021; G08; G08G; G08G5/00; G08G5/20; G08G5/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2073370A
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US2164297A
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US2168049A
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US2617982A
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US2606318A
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US2528730A
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US2624043A
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US2604705A
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US2691226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |