US2871379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse separating circuits
Assignee: EMI Ltd
•
Filing: 1954-10-11
•
Granted: 1959-01-27
•
Expires: 1974-10-11
Abstract
No abstract record available.
Inventors
- 👤 Ingham William Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:38
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/04; H04N5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2609501A
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US2585078A
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US2665845A
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US2787717A
Cited
US2736765A
Cited
US2759052A
Cited
US2705287A
Cited
US2724061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |