US2776371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quantizing system employing cathode ray tube
Assignee: AT&T Inc
•
Filing: 1952-07-18
•
Granted: 1957-01-01
•
Expires: 1972-07-18
Abstract
No abstract record available.
Inventors
- 👤 Albert M Clogston
- 👤 Charles W Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:47
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/02; H01J31/06; Y; Y10; Y10S; Y10S313/00; Y10S313/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2202511A
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US2527981A
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US2472774A
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US2463535A
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US2515931A
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US2544754A
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US2632147A
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US2564908A
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US2588292A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-01 | 1960-07-02 | 1961-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-01 | 1964-07-02 | 1965-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-01 | 1968-07-02 | 1969-01-01 | $7700.00 | Window Closed / Lapsed |