Patent US2489269A successfully refreshed from Google Patents.
US2489269A
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Means for suppressing super numerary pulses
Assignee: Individual
•
Filing: 1940-05-15
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Granted: 1949-11-29
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Expires: 1960-05-15
Abstract
No abstract record available.
Inventors
- 👤 Claud E Cleeton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:59
CPC Classifications
H; H04; H04L; H04L1/00; H04L1/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1792312A
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US2023436A
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US2053016A
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US2050059A
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US2154492A
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US2194559A
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US2158285A
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US2265290A
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US2312491A
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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) | 1952-11-28 | 1953-05-30 | 1953-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-28 | 1957-05-30 | 1957-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-28 | 1961-05-30 | 1961-11-29 | $7700.00 | Window Closed / Lapsed |