US2675424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low-frequency interference suppressor
Assignee: Pye Electronic Products Ltd
•
Filing: 1951-07-09
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Granted: 1954-04-13
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Expires: 1971-07-09
Abstract
No abstract record available.
Inventors
- 👤 Leslie W Germany
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:02
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/10; H04B1/12; H04N; H04N5/00; H04N5/14; H04N5/21
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2227057A
Cited
US2289948A
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US2299945A
Cited
GB562702A
Cited
US2438501A
Cited
US2539774A
Cited
US2589927A
Cited
US2564017A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |