US2753483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television transmission tubes
Assignee: EMI Ltd
•
Filing: 1950-08-01
•
Granted: 1956-07-03
•
Expires: 1970-08-01
Abstract
No abstract record available.
Inventors
- 👤 Lubszynski Hans Gerhard
- 👤 Stillwell Peter Frederic Cryer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:35
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/26; H01J31/28; H01J31/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2185609A
Cited
US2257942A
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US2416720A
Cited
US2452619A
Cited
US2520244A
Cited
US2495042A
Cited
US2544755A
Cited
US2547638A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-03 | 1960-01-02 | 1960-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-03 | 1964-01-02 | 1964-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-03 | 1968-01-02 | 1968-07-03 | $7700.00 | Window Closed / Lapsed |