US3051896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency detector
Assignee: RCA Corp
•
Filing: 1958-05-06
•
Granted: 1962-08-28
•
Expires: 1978-05-06
Abstract
No abstract record available.
Inventors
- 👤 Wladyslaw J Bieganski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:38
CPC Classifications
G; G01; G01L; G01L9/00; G01L9/0041; G01L9/007; A; A61; A61B; A61B5/00; A61B5/07; A61B5/073
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1897204A
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US2352011A
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US2252058A
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US2380791A
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US2594535A
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US2439047A
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US2424249A
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US2440886A
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US2514369A
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US2586880A
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US2592235A
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US2725548A
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US2790145A
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US2834338A
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US2818732A
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US2958781A
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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) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |