US2980765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission of television signals
Assignee: British Telecommunications PLC
•
Filing: 1954-11-26
•
Granted: 1961-04-18
•
Expires: 1974-11-26
Abstract
No abstract record available.
Inventors
- 👤 Holloway Dennis Godson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:28
CPC Classifications
H; H04; H04N; H04N19/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2636081A
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US2625604A
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US2784256A
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US2795650A
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US2803702A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |