US2755335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for interspersing pulses in electrical signals
Assignee: EMI Ltd
•
Filing: 1949-08-31
•
Granted: 1956-07-17
•
Expires: 1969-08-31
Abstract
No abstract record available.
Inventors
- 👤 White Eric Lawrence Casling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:44
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/04; H04N5/06; H04N5/067; H04N5/0675
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB455858A
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US2252613A
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US2244239A
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US2258732A
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US2266194A
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US2298863A
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US2300999A
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US2366358A
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US2570431A
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US2513910A
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US2490561A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-17 | 1960-01-16 | 1960-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-17 | 1964-01-16 | 1964-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-17 | 1968-01-16 | 1968-07-17 | $7700.00 | Window Closed / Lapsed |