US3202943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Band-pass filter utilizing nested distributed-parameter resonators
Assignee: Patelhold Patenverwertungs and Elektro-Holding AG
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Filing: 1963-01-29
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Granted: 1965-08-24
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Expires: 1983-01-29
Abstract
No abstract record available.
Inventors
- 👤 Milliquet Vladimir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:58
CPC Classifications
H; H03; H03H; H03H5/00; H03H5/003; H03H2/00; H03H2/005; H03H2/006; H03H7/00; H03H7/01; H03H7/0123; H03H7/17; H03H7/1741; H03H7/1775; H03H7/1783; H03H7/1791
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2169305A
Cited
US2132208A
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US2239905A
Cited
US2220922A
Cited
US2411299A
Cited
US2408927A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |